From: DrDiettrich1@aol.com   
      
   Stephen Horne schrieb:   
      
   > I'm interested in digraph layout algorithms for presentation of   
   > digraphs in 2D - the kind of things that GraphViz (and particularly   
   > Dot) do. Can anyone point me to some free downloadable papers that   
   > explain in relatively human-friendly language how to do efficient   
   > automatic layout?   
      
   I don't know about specific papers, but I think that recursive graph   
   reduction may be helpful, as described e.g. in the thesis of Cristina   
   Cifuentes. AFAIR the name is not spelled correctly this way, but Google   
   will accept it.   
      
   DoDi   
      
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