Peter Kovacs <kpeter@inf.elte.hu> [Mon, 15 Feb 2010 00:36:27 +0100] rev 28
Add a page about undirected graphs and special graph types
Peter Kovacs <kpeter@inf.elte.hu> [Sun, 14 Feb 2010 22:19:50 +0100] rev 27
Rework and extend the section of basic concepts