References
[Cruz and Tamassia, 1994b]
Cruz, Isabel F.; Tamassia, Roberto. How to visualize a graph: specification and algorithms: declarative approach. 1994. <URL:ftp://ftp.cs.brown.edu/pub/papers/compgeo/draw-tutorial-2.ps.Z>.
Cyberspace geography visualization - 15 October 1995
Luc Girardin, The Graduate Institute of International Studies