Visualizing the loss of diversity in genetic programming. - Jason M. Daida; David J. Ward; Adam M. Hilss; Stephen L. Long; Mark R. Hodges; Jason T. Kriesel (IEEE Congress on Evolutionary Computation, 2004)

Visualizing Tree Structures in Genetic Programming. - Jason M. Daida; Adam M. Hilss; David J. Ward; Stephen L. Long (Genet. Program. Evolvable Mach., 2005)