%%
%% The LaTeX Companion, 3ed
%%
%% Example 15-7-1 on page II-420 in "A collection of \protect \BibTeX {} style files".
%%
%% 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{390.0pt}


  \makeatletter
  \renewcommand\section{\@startsection{section}{1}{\z@}%
    {-1.25ex \@plus-1ex \@minus-.2ex}%
    {.5ex}%
    {\normalfont\large\bfseries}}
  \makeatother

  \renewcommand\refname{References (\texttt{plain} style)}

  % Use BibTeX without --minref

%StartShownPreambleCommands
    \bibliographystyle{plain}
%StopShownPreambleCommands

\begin{document}
    \nocite{Knuth:TB10-1-31,GNUMake,MR-PQ,Knuth-CT-a,test97}
    \bibliography{tlc,tlc-ex}
\end{document}