%% 
%%  Ein Beispiel der DANTE-Edition
%%  
%%  7. Auflage
%% 
%%  Beispiel 16-03-1 auf Seite 308.
%% 
%%  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
%% 
%% 
\documentclass[]{exaarticle}
\pagestyle{empty}
\setlength\textwidth{352.81416pt}
\setlength\parindent{0pt}
%StartShownPreambleCommands
\usepackage{pst-tree}
%StopShownPreambleCommands
\begin{document}
\psset{tpos=.6}%  60% vom Anfang
\pstree[treemode=R,thistreesep=0.75cm,thislevelsep=3cm,radius=2pt]{\Tc{3pt}}{%
  \pstree[treemode=U,xbbr=20pt]{\Tc{3pt}^{oben}}{%
    \TC*^{links}
    \TC*_{rechts}}
  \TC*\ncput*{mitte}
  \TC*_{unten}} \qquad
\pstree[treemode=R,thistreesep=0.75cm,nrot=:U,shortput=nab,
 thislevelsep=3cm,radius=2pt]{\Tc{3pt}}{%
  \pstree[treemode=U,xbbr=20pt]{\Tc{3pt}^{oben}}{%
    \TC*^{links}
    \TC*_{rechts}}
  \TC*\ncput*{mitte}
  \TC*_{unten}}
\end{document}
