\bibitem{gnu:license}
Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
\newblock {\em {GNU} General Public License}, February 1989.
\newblock Version 1.
\bibitem{kg-wr:tie}
Klaus Guntermann and Wolfgang R{\"u}lling.
\newblock Another approach to multiple changefiles.
\newblock {\em TUGboat}, 7(3):134, 1986.
\bibitem{kg-js:cweb}
Klaus Guntermann and Joachim Schrod.
\newblock {\WEB} adapted to {C}.
\newblock {\em TUGboat}, 7(3):134--137, 1986.
\bibitem{knuth:web}
Donald~E. Knuth.
\newblock The {\WEB} system of structured documentation.
\newblock Computer Science Report CS980, Stanford University, 1983.
\bibitem{mittelbach:doc}
Frank Mittelbach.
\newblock The {\tt doc\/} style option.
\newblock {\em TUGboat}, 10(2):245--273, 1989.
\bibitem{ramsey:spider}
Norman Ramsey.
\newblock Weaving a language-independent {\WEB}.
\newblock {\em Communications of the ACM}, 32(9):1051--1055, 1989.