%%
%%  Ein Beispiel der DANTE-Edition
%%
%%  7. Auflage
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%%  Beispiel 15-02-13 auf Seite 258.
%%
%%  Copyright (C) 2016 Herbert Voss
%%
%%  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.
%%
%%
%% ====
% Show page(s) 1
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\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{169.16928pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pst-node}
%StopShownPreambleCommands
\begin{document}
\begin{pspicture}(3,3)
 \rput[bl](0,0){\rnode{A}{\psframebox{A}}}
 \rput[tr](3,3){\ovalnode{B}{B}}
 \psset{offset=0.2,nodesep=2pt}
 \ncline{->}{A}{B} \ncline{->}{B}{A}
\end{pspicture}
\end{document}