D.J. Melnick and G.A. Hoelzer, “What is MtDNA Good for in the Study of Primate Evolution?” Evolutionary Anthropology 2 (1993), pp. 2–10; and D.W. Frayer et al., “Theories of Modern Human Origins: The Paleontological Test,” American Anthropologist 95 (1993), pp. 14–50.
