\begin{thebibliography}{99}
\bibitem{pst-user} pst-user.pdf  \hspace{1cm}	version 1.51  \hspace{1cm} 	131 pages  \hspace{1cm} 	\DGB
%\bibitem{pstricks} pstricks-doc.pdf  \hspace{1cm}	version 97  \hspace{1cm} 	338 pages  \hspace{1cm} 	\DGB
%\bibitem{pst-add}
\bibitem{pstricks-add}    pstricks-add-doc.pdf  \hspace{1cm}	version 3.61 \hspace{1cm} 	134 pages 	\hspace{1cm}	\DGB
\bibitem{pst-3dplot} pst-3dplot-doc.pdf  \hspace{1cm}	version 1.94 \hspace{1cm} 	69 pages \hspace{1cm}	\DGB
\bibitem{pst-bezier} pst-bezier-doc.pdf  \hspace{1cm}	version 0.01 \hspace{1cm} 	10 pages 	\hspace{1cm}	\DGB
\bibitem{pst-coil} pst-coil-doc.pdf  \hspace{1cm}	version 1.06 \hspace{1cm} 	14 pages 	\hspace{1cm}	\DGB
\bibitem{pst-eucl} pst-eucl-doc.pdf \hspace{1cm}	version 1.51 \hspace{1cm}	52 pages 	\hspace{1cm}	\DGB
\bibitem{pst-fill} pst-fill.pdf     \hspace{1cm}	version 1.00 \hspace{1cm}	37 pages 	\hspace{1cm}  	\DGB
\bibitem{pst-fr3d} pst-fr3d.pdf   \hspace{1cm}	version 1.00 \hspace{1cm}	10 pages 	\hspace{1cm} 	\DGB
\bibitem{pst-fun} pst-fun-doc.pdf   \hspace{1cm}	version 0.04 \hspace{1cm}	11 pages 	\hspace{1cm} 	\DGB
\bibitem{pst-func} pst-func-doc.pdf   \hspace{1cm}	version 0.81 \hspace{1cm}	73 pages 	\hspace{1cm} 	\DGB
\bibitem{pst-grad} pst-grad-doc.pdf \hspace{1cm}	version 1.06 \hspace{1cm}	11 pages 	\hspace{1cm}	\DGB
\bibitem{pst-infix} pst-infixplot.pdf  \hspace{1cm}	version 0.11 \hspace{1cm} 	2 pages 	\hspace{1cm}	\DGB
\bibitem{pst-news05} pst-news05.pdf 	 \hspace{1cm} 	11 pages 	\hspace{1cm}	\DGB
\bibitem{pst-news08} pst-news08.pdf 	\hspace{1cm} 	30 pages 	\hspace{1cm}	\DGB
\bibitem{pst-news10} pst-news10.pdf \hspace{1cm}	28 pages 	\hspace{1cm}	\DGB
\bibitem{pst-news13} pst-news10.pdf \hspace{1cm}	9 pages 	\hspace{1cm}	\DGB
\bibitem{pst-node} pst-node-doc.pdf  \hspace{1cm}	version 1.30 :	53 pages 	\hspace{1cm}  	\DGB
\bibitem{pst-plot} pst-plot-doc.pdf  \hspace{1cm}	version 1.40 :	92 pages 	\hspace{1cm} 	\DGB
\bibitem{pst-poly} pst-poly-doc.pdf  \hspace{1cm}	version 1.61 :	22 pages 	\hspace{1cm} 	\DGB
\bibitem{pst-slpe} pst-slpe.pdf   \hspace{1cm}	version 1.31 \hspace{1cm}	16 pages 	\hspace{1cm}  	\DGB
\bibitem{pst-sol3d} pst-solides3d-doc.pdf   \hspace{1cm}	version v. 4.24 \hspace{1cm}	197 pages 	\hspace{1cm}  	\DGB
\bibitem{pst-text} pst-text-doc.pdf   \hspace{1cm}	version 1.06\hspace{1cm}	11 pages 	\hspace{1cm}  	\DGB
\bibitem{pst-tree} pst-tree-doc.pdf   \hspace{1cm}	version 1.12\hspace{1cm}	24 pages 	\hspace{1cm} 	\DGB
\bibitem{multido} multido-doc.pdf   \hspace{1cm}	version 1.42\hspace{1cm}	4 pages 	\hspace{1cm}  	\DGB
\bibitem{xcolor} xcolor.pdf   		\hspace{1cm}	version 2.11 \hspace{1cm}	65 pages 	\hspace{1cm}  	\DGB
\bibitem{anim} animate.pdf   	\hspace{1cm}	6th December 2012 \hspace{1cm}	23 pages \hspace{1cm}  	\DGB
\end{thebibliography}