@LaTeX3-article{ LaTeX3-L3-004-txt,

====================================================================
@LaTeX3-article{ LaTeX3-L3-004-txt,
filename = "l3d004.txt",
archived = "ctan:/tex-archive/info/ltx3pub/",
author = "Frank Mittelbach and Chris Rowley",
doc-group = "Project core team",
title = "The {\LaTeX3} Project; Report 1991--92",
version = "1.00",
date = "01 April 1993",
time = "13:37:20 GMT",
status = "public, official",
abstract = "This report describes the current
activities of the \LaTeX3 project.
After a short project overview, the
major events of 1991 and 1992 are
described. Finally the project plan for
1993 is presented.
",
keywords = "",
project-address = "LaTeX3 Project \\
c/o Dr. Chris Rowley \\
The Open University \\
Parsifal College \\
Finchley Road \\
London NW3 7BG, England, UK",
project-tel = "+44 171 794 0575",
project-FAX = "+44 171 433 6196",
project-email = "[email protected]",
copyright = "Copyright (C) 1993 LaTeX3 Project
and Frank Mittelbach and Chris Rowley.
All rights reserved.

Permission is granted to make and distribute
verbatim copies of this publication or of
coherent parts from this publication provided
this copyright notice and this permission
notice are preserved on all copies.

Permission is granted to copy and distribute
translations of this publication or of
individual items from this publication into
another language provided that the translation
is approved by the original copyright holders.

No other permissions to copy or distribute this
publication in any form are granted and in
particular no permission to copy parts of it
in such a way as to materially change its
meaning.",
generalinfo = "To subscribe to the LaTeX3 discussion list:

Send mail to [email protected]
with the following line as the body of the
message (substituting your own name):

subscribe LaTeX-L First-name Surname

To find out about volunteer work:

look at the document vol-task.tex which can
be obtained electronically, see below.

To retrieve project publications electronically:

Project publications are available for
retrieval by anonymous ftp from ctan hosts:
ftp.tex.ac.uk
ftp.dante.de
ftp.shsu.edu
in the directory /tex-archive/info/ltx3pub.

The file ltx3pub.bib in that directory gives
full bibliographical information including
abstracts in BibTeX format. A brief history
of the project and a description of its aims
is contained in l3d001.tex.

If you only have access to email, and not ftp
You may use the ftpmail service.
Send a message just containg the word
help
to [email protected]
for more information about this service.

For offers of financial contributions or
contributions of computing equipment or
software, contact the project at the above
address, or the TeX Users Group.

For offers of technical assistance, contact the
project at the above address.

For technical enquiries and suggestions, send
e-mail to the latex-l list or contact the
project at the above address.",
checksum = "30097 902 5006 49192",
docstring = "The checksum field above contains a CRC-16
checksum as the first value, followed by the
equivalent of the standard UNIX wc (word
count) utility output of lines, words, and
characters. This is produced by Robert
Solovay's checksum utility.",
}
====================================================================

The LaTeX3 Project (C)1993 Frank Mittelbach
Chris Rowley
Report 1991--92

Abstract This report describes the current activities of the
LaTeX3 project. After a short project overview, the
major events of 1991 and 1992 are described. Finally the
project plan for 1993 is presented.

Project overview The aim of this project is the development of a new
version of LaTeX with the following enhancements.

* It provides an enhanced user-interface, facilitating
the expression of a large range of typesetting
requirements from fields both within and outside the
natural sciences. This includes the requirements of
technical documentation (offset layout, change bars,
etc.) as well as requirements from humanities
(critical text editions, etc.), many of which are
not supported by the current LaTeX.
* It provides a more robust user-interface. For
example, restrictions on the nesting of commands
will be removed; error handling will be improved.
* It provides a syntax that allows (semi-)automatic
translation from popular SGML DTD's into provided
LaTeX document style options. The new syntax will
include, for example, attribute and short reference
concepts that can be mapped directly into
corresponding SGML features.
* It provides a style-designer interface that allows
easy specification of a wide variety of layouts.
This includes, for example, access to arbitrary font
families.
* The style-design language should be as natural as
possible. It will be based on a hierarchical
collection of generic formatting functions, so that
layouts can be specified by parameters without
involving difficult TeX coding.
* The new interfaces will be described in detail, with
carefully chosen examples, making the learning time

LaTeX3 Project
---------------
for new users (both designers and authors) as short
as possible.

To achieve this aim it was necessary to review large
parts of the user-interface and to design a complete new
language for style-design.

One result of this work was to show the necessity of
completely rewriting the kernel of the current LaTeX.
Therefore the project is divided into six partly
overlapping phases.

Phase 1: Review and redesign of the user-interface. The
requirements imposed on a typesetting language by
various applications are analysed. This includes the
proposed translation from popular DTD's into the
language of the LaTeX user-interface.

Phase 2: Prototype implementation of new concepts. The
new concepts developed in phase one are implemented and
tested. The tests should not only prove that the
concepts are implementable within TeX but also test the
functionality of the concepts. Larger real-life
applications from different fields will show to what
extent the new concepts are suitable and might lead to
some refinements in the design of the user-interface.

Phase 3: Design of a designer-interface. This phase is
more or less independent of the first two phases. The
current LaTeX is considered unsatisfactory since it
forces the designer to become deeply involved with TeX's
algorithmic philosophies and these are likely to be
unfamiliar to him. An analysis will be made of the
extent to which it is possible to support a
layout-description language that is natural for a
designer.

Phase 4: Prototype implementation of the designer
interface. This is similar to phase two. The concepts
resulting from phase three are implemented in prototype
versions which are used to test the acceptance of the

2

LaTeX3 Project
---------------
new designer-interface. In this area implementation
details are relatively uncritical, whereas the
development of the interface might pose difficult
questions since there is no previous research in this
area.

Phase 5: Re-implementation of the LaTeX kernel. The
results from phases two and four are combined and a
system kernel that supports both interfaces is
implemented. At this point beta-testing at selected
sites is started.

Phase 6: Documentation. While internal documentation is
an integral part of every phase, the main work of phase
six (manuals and conversion) is devoted to the writing
of informative manuals covering both the user- and
designer-interface.

Milestones '91 Shortly after the start of the project three important
events took place: a workshop with professionals from
the publishing industry in Dedham, followed by working
week at the American mathematical Society (AMS) in
Providence and later on a meeting with Professor Donald
Knuth in Stockholm.

In the last quarter of 1991 substantial effort was put
into the development of an internal LaTeX3 programming
language. A prototype kernel, written in a first
approximation to the final language, formatted its own
documentation (a 120 page document) for the first time
in December.

Workshop After the annual meeting of the TeX Users Group in
Dedham Dedham (July 91) a two-day workshop was held to discuss
design questions for LaTeX3 with TeX experts,
compositors and other professionals from the publishing
industry. In this workshop (lead by Chris Rowley and
Frank Mittelbach) questions of page layout
specifications and user interface design were discussed.
It was based on material gathered and collated by David
Rhead from previous electronic mail discussions about

3

LaTeX3 Project
---------------
these topics on the LaTeX3 discussion list. This
workshop was sponsored by the TeX Users Group.

Working week Following this workshop Chris Rowley, Michael Downes
at AMS (AMS), and Frank Mittelbach worked for one week at the
AMS headquarter at Providence on the specifications for
the LaTeX3 error recovery and help system and on some
problems related to the efficiency of TeX's approach to
mathematical typesetting.

Paris At the European TeX conference in Paris (September),
conference Chris Rowley and Rainer Schoepf presented an overview of
the enhancements to be made to the user interface.

Stockholm In November Frank Mittelbach was invited to Stockholm to
attend the celebrations for the Honorary Doctorate of
Donald Knuth and to give a paper on LaTeX3 at the Nordic
TeX conference. The handouts for this paper were later
published in TeXline [7] and in [9]; later an enlarged
version, co-authored by Chris Rowley, appeared in [14].
Whilst in Stockholm Frank took the opportunity to
discuss for two days with Donald Knuth design decisions
he had taken in the development of the TeX system.

Milestones '92 The last year has seen substantial progress in three
major areas: establishing structures to consolidate
support for LaTeX 2.09 (these structures will therefore
be well tested before they are needed for LaTeX3);
deciding which of the many requirements of a
high-quality document formatting system can be
implemented using TeX as the formatting engine; research
on models of document formatting which support
high-quality typography. These last two are, of course,
closely related and mutually supportive.

SGML Users In February Chris Rowley gave a presentation to the
Group inaugural meeting of the UK chapter of the SGML Users
Group. This gave an outline of the project and its
importance to the formatting of documents encoded in
accordance with SGML.

4

LaTeX3 Project
---------------
Hamburg At the Dante Meeting in Hamburg (March 92) Frank
Mittelbach presented an overview of the LaTeX3 project;
this was later published as [8]. After the conference a
two day workshop with various TeX and LaTeX experts from
several European countries was held to discuss questions
of the user and style-designer interfaces for LaTeX3.

Questionnaire Rolf Lindgren, a student in the field of psychology,
volunteered to develop and analyse a questionnaire on
the subject of site-specific usage, including additions
and changes, of popular extensions to LaTeX 2.09. The
project team hopes that this will provide important data
about such areas as the current usage of LaTeX, which of
these additions are the most important for inclusion in
the main system of LaTeX3, etc.

A first draft of the questionnaire was handed out to the
participants at the Hamburg meeting and Rolf Lindgren
used the results of this to write a preliminary
report [5] and also to redesign the questionnaire
itself. The final questionnaire will be sent out to a
representative sample of sites in 1993.

Lausanne At the Electronic Publishing Conference EP92 in
conference Lausanne, Chris Rowley and Frank Mittelbach gave a paper
about potential problems when trying to produce high
quality output using automated document typesetting
systems [18]. The results presented in this paper were
influenced by their work on the LaTeX3 system. On the
other hand, this basic research into models for document
formatting has direct benefits for the LaTeX3 project
since it leads to the development of useful new concepts
and methods.

CERN Frank Mittelbach and Chris Rowley were also invited to
CERN to give a talk about the LaTeX3 system and to
discuss problems encountered in the production of
high-quality output from SGML sources. Addressing such
problems is a major goal of the LaTeX3 project.

5

LaTeX3 Project
---------------
Mainz At the end of April Frank Mittelbach invited the core
workshop development team for LaTeX3 to an 11 day workshop in
Mainz to discuss data structures for the kernel and for
the style designer language. This workshop was made
possible through support from the Zentrum fuer
Datenverarbeitung der Universitaet Mainz (providing
working facilities), the AMS (facilitating Michael
Downes attendance), and DANTE, the German TeX Users
Group (help with other expenses).

The main results of this workshop were summarized in an
internal project paper by Denys Duchier [2]; they are
mainly of a somewhat theoretical nature, e.g.,
discussions about what algorithms to use, the nature of
internal interfaces, etc. Some of them are now
implemented in prototypes, others are scheduled for
further work during 1993.

Paris meeting In May GUTenberg (the French TeX Users Group) invited
Rainer Schoepf and Frank Mittelbach to a one day meeting
in Paris to discuss various aspects of the LaTeX3
project. They presented an overview of the user
interface, a summary of the structure of the LaTeX3
system, the layout specification interface and the
coding of tabular material. They also discussed details
of the LaTeX3 programmer's environment, the short
reference mechanism, the float mechanism, the mark
mechanism, the I/O interface and the error recovery
mechanism. GUTenberg also made a much appreciated
contribution to the project's expenses.

Later in the year the possibility of a collaboration
between the LaTeX3 project, the University of Mainz and
one or more French institutes was discussed. This
collaboration is now becoming concrete and it is planned
that, in the second half of 1993, French students of
informatique will spend periods of three or more months
in Mainz and assist Frank Mittelbach in the development
of the LaTeX3 system.

Macro Together with David Carlisle, Frank Mittelbach developed
validation a system for automatic validation of changes in large
system macro packages [13, 1]. The purpose of this system is to

6

LaTeX3 Project
---------------
detect errors introduced by incorrect bug fixes to the
macro packages before such changes are distributed. The
quality of the automated checking system depends largely
on the number of test files in it. It was first tested
with the New Font Selection Scheme (NFSS) package [22]
where it was successful in preventing some mistakes from
getting into the distributed version.

After this successful test a group of volunteers under
the direction of Daniel Flipo started to write test
files for the LaTeX 2.09 base system; these will improve
the quality of its maintenance. It is intended that they
will also be used as a test base for the user interface
of the LaTeX3 system.

New A considerable amount of time during 1992 was devoted to
LaTeX 2.09 reorganizing the distribution and support of the styles
style which have been developed by Rainer Schoepf and Frank
distributions Mittelbach for the LaTeX 2.09 release. A lot of work was
done on the code-documentation package, consisting of
the program docstrip and the style doc. The program
docstrip was reimplemented and enhanced by Johannes
Braams, Denys Duchier and Frank Mittelbach. The
documentation of the doc style was brought up-to-date by
David Love [11]. The array package, which contains an
enhanced reimplementation of the array and tabular
environments of LaTeX 2.09, was improved by the addition
of code written by David Carlisle [12]. Frank Mittelbach
rewrote parts of the multicol package to support \marks
for use in running headings and to allow for up to ten
columns [10]. These packages, and all others, have been
reorganized to make use of the extra features of the new
docstrip program; this will ensure their smooth and easy
installation at every site having a TeX installation.

LaTeX 2.09 At the same time, a new system for maintaining the
maintenance LaTeX 2.09 base system was installed at Mainz by Rainer
Schoe pf and the whole base system was transferred to
this site so that it can be maintained by him and Frank
Mittelbach.

7

LaTeX3 Project
---------------
BibTeX reim- One of the important programs in the LaTeX system is
plementation BibTeX, a system for managing bibliographical material
and producing bibliographies in documents. At the TeX
Users Group Conference in Cork (1990) Reinhard
Wonneberger and Frank Mittelbach presented a paper
discussing several proposals for a reimplementation of
this program [24]. During the summer Oren Patashnik, the
original author of BibTeX, was contacted to discuss with
him a reimplementation of BibTeX. He agreed to
reimplement this program so that it will interface
smoothly with the new LaTeX system.

These reimplementation proposals are now being discussed
by a small group of experts and work is under way to
finalize the user interface for providing
bibliographical information in the LaTeX3 system; this
will support the many distinct citation conventions
(author-date system, etc.) that are in common use. In
addition to providing the LaTeX3 system with a
bibliographical system which is also freely available,
it is planned to provide, wherever possible, interfaces
linking LaTeX3 with commercially available bibliographic
software. This will, for example, enable users to
integrate into LaTeX documents information extracted
from large bibliographic databases. Much of the work in
this area is being carried out by David Rhead.

TUG annual At the annual meeting of the TeX Users Group in
meeting Portland, Oregon, Chris Rowley gave a talk which
surveyed the current status of the LaTeX3 project [23]
and ran a mini-workshop at which some of the more
technical aspects were discussed. This meeting was
important in establishing the project as being of
central importance to the community of TeX users and
developers and to the future of TeX as a formatter for
high quality typographic output.

Volunteer One of the results of the meeting of the core
tasks development team in Mainz was to single out tasks that
could be taken up by volunteers whose work could be to a
large extent independent of the core team. During the
summer, Michael Downes and Frank Mittelbach prepared a
task list and working procedures for such volunteers.

8

LaTeX3 Project
---------------
George Greenwade from the Sam Houston State University
kindly agreed to serve as a task list manager; the
Volunteer Task List was therefore presented to the
public at the Prague conference in
September [15, 17, 16].

Prague In September the European TeX conference took place in
conference Prague. Chris Rowley and Frank Mittelbach reported on
the status of the LaTeX3 project and described some
aspects of the formatting model which it will implement.
In a separate presentation they described some results
of their research on more general models for document
formatting.

Series During the conference in Prague Frank Mittelbach
agreement concluded with Peter Gordon (Addison-Wesley) publication
agreements concerning the documentation of the LaTeX3
system and related books. They will appear in a book
series with the tentative title `Tools and Techniques
for Computer Typesetting' under the editorial
supervision of Frank Mittelbach and with the
participation of Leslie Lamport and other key players in
the LaTeX3 project.

BCS meeting In September Chris Rowley was invited to give a talk
about LaTeX3 at a meeting on Structured Documentation
organised by the British Computer Society EP Specialist
Group in Nottingham. This contained a brief history and
outline of the project, followed by some discussion of
the requirements of the designer's interface.

Working week Leslie Lamport visited Frank Mittelbach for five days in
in Mainz October to discuss the work in progress. They covered
many aspects of the user interface including the
important mechanism for attaching attributes to commands
and environments.

9

LaTeX3 Project
---------------
Washington During the Lausanne Conference Chris Rowley and Frank
conference Mittelbach had been invited to present further results
of their research on document formatting models at an
international `Workshop on Principles of Document
Processing' in Washington DC, organized by the Xerox
Webster Research Center, Cornell University and Syracuse
University. This talk, which has now been written up for
publication, led to many fruitful discussions. These
covered many aspects of the relationship between their
approach and that of other work on models of document
processing.

The workshop also showed the need to investigate the
relationship between two types of model: those similar
to that of Mittelbach/Rowley, which are oriented towards
data structures and operations that can be effectively
implemented, and those of a more general nature, which
describe a large range of document processing
applications in terms of formal structures such as
attribute grammars and trees.

Bell-Labs During their stay in the US they also visited AT&T Bell
Laboratories, invited by John Hobby, who worked under
Knuth on the TeX project in Stanford. In addition to
giving a talk about their research in document
formatting models and discussing this with researchers
there, they had the opportunity to discuss with Brian
Kernighan his recent work on page-makeup by
post-processing [4].

Multiple As part of the LaTeX3 kernel Frank Mittelbach developed
marks prototype code for multiple independent marks. This
allows information, such as the first or the last index
entry for each column in a multi-column layout, to be
recorded for later use in the final page make-up. Due to
the limited support for such layout structures in TeX,
the current LaTeX only provides a very simple mechanism.

Bremen Following the Lausanne conference Frank Mittelbach was
colloquium invited to give a colloquium talk on the subject
`Computereinsatz in der Typographie: Kann die hohe
Qualitaet des Handsatzes durch Computerprogramme

10

LaTeX3 Project
---------------
erreicht oder uebertroffen werden?' at the Computer
Science Institute of the Bremen University. During his
two-day visit to Bremen Frank Mittelbach had several
fruitful discussions with the research team working with
Professor Frieder Nake on research problems in computer
controlled typesetting.

Meppel In the second half of November Frank Mittelbach was
conference invited to give a talk at the meeting of the Netherlands
TeX Users Group in Meppel. He spoke about possible
directions in research on typesetting problems,
discussing tasks which are impossible to achieve using
state of the art typesetting systems such as TeX. This
talk was based on a paper published in the conference
proceedings of TeX90, [6].

Nordic TeX The Nordic TeX users group invited a representative of
conference the LaTeX3 project to speak at their meeting in
Kobenhavn so Chris Rowley presented a brief history of
the project and discussed several aspects of the
designer interface. He also discussed future
collaboration with other research projects in the area
of document processing.

Euromath Chris Rowley has been exploring the relationships
between the LaTeX3 project and the Euromath project.
This latter project was started in 1986 and is aimed at
the production of an integrated system which provides a
homogeneous working environment for mathematicians. It
is based on the Grif structure editor, which provides an
object oriented system and applications programming
interface. Thus LaTeX is their natural, and preferred,
choice of application for the production of
publishing-quality typeset output.

alpha-test In the last quarter of 1992 Frank Mittelbach rewrote the
NFSS2 NFSS system (New Font Selection Scheme for
LaTeX [20, 21]), based on a prototype extension to NFSS
written by Mark Purtill in 1991. This reimplementation
extends the released version in several ways including
encoding support (multiple languages), scalable font

11

LaTeX3 Project
---------------
support (PostScript fonts) and math font support. In
addition Frank Mittelbach wrote new documentation for
the package, which will appear as a chapter of [3]. The
alpha-testing of the new release was started at the end
of December and the official release is planned for
summer 1993.

Error For error recovery a prototype had already been
recovery and implemented early in 1992, as part of the prototype
help system kernel for LaTeX3, but the interface to an interactive
help system existed only as a specification written
during the working week at the AMS in Providence. A
first prototype was implemented by Michael Downes in
December, so that it is now possible to do small field
tests; this implementation is, however, currently only
available as a LaTeX 2.09 style file. It is planned to
reimplement this in the LaTeX3 programming language
during 1993.

Current status Phase 1: Review and redesign of the user-interface.
There is now enough information about the requirements
to be able to produce a testable version of the
user-interface in the near future.

Phase 2: Prototype implementation of new concepts. As
outlined above, several prototype implementations have
been tested during the last year. However, further tests
will be necessary once the user-interface, the design
language and the internal LaTeX3 programming language
are in their final form.

Phase 3+4: Design and prototypes of a
designer-interface. The main concepts for the design
interface are now developed and some proto-typing has
already taken place. Nevertheless, this phase of the
project will need considerable additional time as these
concepts are new and thus cannot rely on experience
already gathered.

Phase 5: Re-implementation of the LaTeX kernel. As
mentioned above, a prototype version of the LaTeX3

12

LaTeX3 Project
---------------
kernel, written in the current version of the LaTeX3
programming language, has already been completed.
However, as long as the work on phases 3 and 4 is still
under way, this forms only an approximation to the final
product.

Plans for 1993 In the first quarter of 1993 the project team plans
another workshop in Germany to work on the style design
language.

The core project team will investigate the possibilities
for collaboration with related research and development
projects such as Euromath. They will also establish
contact with the ISO working group on the Document Style
Semantics and Specification Language (DSSSL).

The beta-testing of NFSS2 is planned for March up to May
and the official release of the system is scheduled for
summer 1993.

The project team will work on a prototype of the
designer-interface. This will lead to testing of this
interface by working with designers to discover how
easily it enables them to realise practical designs.

It is planned that in the summer a French student will
come to Mainz for three months, to help with the
project's work.

Finance There has been a modest but steady flow of contributions
into the project fund set up by the TeX Users Group.
Many of these come from individual members and they are
particularly valued by the project team since, in
addition to their financial significance, they represent
a very high level of personal commitment to the success
of the project amongst the TeX community---much thanks
to everyone involved in these fund-raising efforts,
especially to Alan Hoenig, Doug Henderson and the TUG
office staff.

The project's finances will also benefit greatly from
the generosity of the authors of the forthcoming book A
LaTeX Companion [3] to be published by Addison-Wesley in

13

LaTeX3 Project
---------------
1993: they are donating 50% of their royalties to the
project. This book will describe the contents and use of
many of the extensions to LaTeX 2.09 which are now
widely available.

The following institutions have made substantial
contributions to the fund administered by TUG or to the
project directly and we are very glad to acknowledge
them here with thanks: Addison-Wesley, Blue Sky
Research, Dante, GUTenberg, NTG Nederlandstalige TeX
Gegruikersgroep, Nordic TeX Users Group, UK TeX Users
Group.

The following organisations have also assisted the
project in various ways, including the provision of
books, equipment, software, staff time, etc: AMS,
ArborText, ArchaeoInformatica, Aston University, Blue
Sky Research, CERN, Digital Equipment Corporation,
EDS Electronic Data Systems, Elsevier Science
Publishers, Life Science Communications, Manchester
University, Open University UK, PCTeX, Royal Institute
of Technology Stockholm, Royal Military College of
Science, The Royal Society, TCI Research, Southampton
University, TeX88, Zentrum fuer Datenverarbeitung der
Universitaet Mainz.

The project is still in need of financial assistance
since demands on the fund are certain to grow
substantially when wide-spread testing begins.

References [1] David Carlisle and Frank Mittelbach. A test system
for LaTeX-2.09. LaTeX3 project paper, June 1992.
[2] Denys Duchier. Mainz, May 26--Jun 3 1992. Internal
LaTeX3 paper, June 1992.
[3] Michel Goossens, Frank Mittelbach and Alexander
Samarin. The LaTeX Companion (tentative title).
Addison-Wesley, Reading, Massachusetts, 1993. to
appear.
[4] Brian W. Kernighan and Christopher J. Van Wyk. Page
makeup by postprocessing text formatter output.
Computing Systems, 2(2):103--132, 1989.
[5] Rolf Lindgren. Preliminary report on LaTeX style
options. Internal LaTeX3 paper, August 1992.

14

LaTeX3 Project
---------------
[6] Frank Mittelbach. E-TeX: Guidelines to future TeX
extensions. In Lincoln K. Durst, editor, 1990
Conference Proceedings, pages 337--345, September
1990. Published as TUGboat 11#3.
[7] Frank Mittelbach. LaTeX2.09 -> LaTeX3. TeXline,
(14):15--18, February 1992.
[8] Frank Mittelbach. LaTeX3. Die TeXnische Komoedie,
4(2):15--22, August 1992.
[9] Frank Mittelbach. LaTeX3 project. TeX Gebruikers
Group, 92(1):87--90, May 1992.
[10] Frank Mittelbach. The multicol package.
Distribution of style options that allow
multi-column layout with LaTeX, November 1992.
[11] Frank Mittelbach, Johannes Braams, David Love and
Denys Duchier. The doc package. Distribution of the
utilities for the documentation and distribution of
TeX macro packages., May 1992.
[12] Frank Mittelbach and David Carlisle. The array
package. Distribution of style options that extend
LaTeX's array and tabular facilities, May 1992.
[13] Frank Mittelbach and David Carlisle. The validation
package. Distribution of tools for automatic
validation of changes in large macro packages, June
1992.
[14] Frank Mittelbach and Chris Rowley. LaTeX2.09 ->
LaTeX3. TUGboat, 13(1):96--101, April 1992.
[15] Frank Mittelbach, Chris Rowley and Michael Downes.
Volunteer work for the LaTeX3 project. LaTeX3
project paper, September 1992.
[16] Frank Mittelbach, Chris Rowley, and Michael Downes.
Volunteer work for the LaTeX3 project. TUGboat,
13(4):510--515, December 1992.
[17] Frank Mittelbach, Chris Rowley and Michael J.
Downes. Volunteer work for the LaTeX3 project. TeX
and TUG NEWS, 1(3):18, November 1992.
[18] Frank Mittelbach and Chris A. Rowley. The pursuit
of quality---how can automated typesetting achieve
the highest standards of craft typography? In
C. Vanoirbeek and G. Coray, editors, Electronic
Publishing '92, pages 260--273, Cambridge, April
1992. Cambridge University Press.
[19] Frank Mittelbach and Chris A. Rowley. The pursuit
of quality---How can automated typesetting achieve
the highest standards of craft typography? MAPS,

15

LaTeX3 Project
---------------
92(2):50--56, November 1992. Paper already
published in Electronic Publishing '92, April 1992,
Cambridge University Press, (ISBN 0-521-43277-4);
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[20] Frank Mittelbach and Rainer Schoepf. A new font
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[21] Frank Mittelbach and Rainer Schoepf. Reprint (with
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[22] Frank Mittelbach and Rainer Schoepf. The nfss
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[23] Chris Rowley. LaTeX2.09 -> LaTeX3: an update. In
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[24] Reinhard Wonneberger and Frank Mittelbach. BibTeX
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