Eukaryotic genome size databases. - T. Ryan Gregory; James A. Nicol; Heidi Tamm; Bellis Kullman; Kaur Kullman; Ilia J. Leitch; Brian G. Murray; Donald F. Kapraun; Johann Greilhuber; Michael D. Bennett (Nucleic Acids Res., 2007)

Spore: Assessment of the Science in an Evolution-Oriented Game. - John Bohannon; T. Ryan Gregory; Niles Eldredge; William Sims Bainbridge (Online Worlds: Convergence of the Real and the Virtual, 2010)