References
[Grossberg, 1983]
Grossberg, Stephen. The quantized geometry of visual space: the coherent computation of depth, form, and lightness. Harnad, Stevan, editor. The behavioral and brain sciences. Cambridge: Cambridge University; 1983: 625-692.
Cyberspace geography visualization - 15 October 1995
Luc Girardin, The Graduate Institute of International Studies