%%
%% The LaTeX Companion, 2ed (second printing August 2004)
%%
%% Example A-1-7 on page 848.
%%
%% Copyright (C) 2004 Frank Mittelbach, Michel Goossens,
%%    Johannes Braams, David Carlisle, and Chris Rowley
%%
%% It may be distributed and/or modified under the conditions
%% of the LaTeX Project Public License, either version 1.3
%% of this license or (at your option) any later version.
%%
%% See http://www.latex-project.org/lppl.txt for details.
%%

\documentclass{ttctexa}
\pagestyle{empty}
\setcounter{page}{6}
\setlength\textwidth{183.0pt}
\StartShownPreambleCommands
\newenvironment{Abstract}
  {\begin{center}\normalfont\bfseries Abstract%
   \end{center}\begin{quote}}{\end{quote}\par}
\StopShownPreambleCommands
\begin{document}
\begin{Abstract}
 This abstract explains the approach used
 to solve the problems at hand.
\end{Abstract}
Some text following the abstract. Some text
following the abstract. And some more.
\end{document}