The writing of the codes benefited from collaborators and students. 
In addition, the Fhp7_msite code borrows from the boolean collision
algorithm published in: 

Dominique d'Humi`eres and Pierre Lallemand:
Numerical Simulations of Hydrodynamics with Lattice Gas Automata 
in Two Dimensions. 
Complex Systems, Vol. 1, pp 599-632, 
reprinted in: 
Lattice Gas Methods for Partial Differential Equations, SFI SISOC, 
Eds Doolen et al., Addison-Wesley 1990. 

Several correspondents indicated bugs in the code, among them are: 

Ben Fry <fry@media.mit.edu>
Andreas Buness <abuness@uos.de>

