%%
%% The LaTeX Companion, 3ed
%%
%% Example 16-2-12 on page II-480 in "cite --- Enhanced references by number".
%%
%% 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{99.0pt}

%% For the example in the book:
\setlength\parindent{0pt}
%% Do not show the bibliography itself in the example,
%% so put it on a separate page:
\AtEndDocument{\newpage\bibliography{tlc}}

%StartShownPreambleCommands
\usepackage[nospace]{cite}  \bibliographystyle{plain}
\renewcommand\citeform[1]{(#1)}
%StopShownPreambleCommands

\begin{document}
\citen{LGC97,LWC99,test97,vLeunen:92} but \cite[\S5]{Knuth-CT-a}
\end{document}