Plant-Herbivore Coevolution in a Spatially and Genetically Explicit Model. - Gregg Hartvigsen; William T. Starmer (Artif. Life, 1995)

Global cooperation achieved through small behavioral changes among strangers. - Gregg Hartvigsen; Lee Worden; Simon A. Levin (Complex., 2000)

Distributed implementation and visualization of small world networks. - Garrett Jones; Jeff Saracco; Homma Farian; Gregg Hartvigsen (J. Comput. Sci. Coll., 2007)