%%
%% The LaTeX Companion, 3ed
%%
%% Example 16-8-8 on page II-579 in "bibtopic --- Combining references by topic".
%%
%% Copyright (C) 2022 Frank Mittelbach
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3c
%% of this license or (at your option) any later version.
%%
%% See
https://www.latex-project.org/lppl.txt for details.
%%
\documentclass{tlc3exa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{231.0pt}
% Use a special naming convention for aux files (for the book):
%
\AtBeginDocument{\renewcommand\thebtauxfile{\jobname+\arabic{btauxfile}}}
% Small headings for the example
\makeatletter
\renewcommand\section{\@startsection{section}{1}{\z@}%
{-1.25ex \@plus-1ex \@minus-.2ex}%
{.8ex}%
{\normalsize\bfseries}}
\makeatother
% the two databases we use ...
\begin{filecontents*}[force]{tlc-tex.bib}
@Book{Knuth-CT-a,
Author = "Donald E. Knuth",
Title = "The {\TeX}book",
Publisher = "Ad{\-d}i{\-s}on-Wes{\-l}ey",
Address = "Reading, MA, USA",
Volume = "A",
Series = "Computers and Typesetting",
pages = "ix + 483",
year = 1986,
isbn = "0-201-13447-0",
}
\end{filecontents*}
\begin{filecontents*}[force]{tlc-jura.bib}
@BOOK{aschur,
author = {Hans Brox and Wolf-Dietrich Walker},
title = {Allgemeines Schuldrecht},
language = {ngerman},
edition = {29.},
year = 2003,
address = {M\"unchen}}
@BOOK{bschur,
author = {Hans Brox and Wolf-Dietrich Walker},
title = {Besonderes Schuldrecht},
shorttitle = {BSchuR},
language = {ngerman},
edition = {27.},
year = 2002,
address = {M\"unchen}}
\end{filecontents*}
%StartShownPreambleCommands
\usepackage{bibtopic}
%StopShownPreambleCommands
\begin{document}
We saw the citations \cite{Knuth-CT-a},
\cite{aschur}, and \cite{bschur}.
\begin{btSect}{tlc-jura}
\section*{Juridical literature}
\btPrintCited
\end{btSect}
\begin{btSect}[abbrv]{tlc-tex}
\section*{\TeX{} literature}
\btPrintCited
\end{btSect}
\end{document}
