Eerkens, Jelmer:

Bettinger, Robert L., and Jelmer Eerkens
  1999  Point Typologies, Cultural Transmission, and the Spread of Bow-and-Arrow Technology in the Prehistoric Great Basin. American Antiquity 64: 231-242.

Eerkens, Jelmer W., Robert L. Bettinger, and Richard McElreath
  2006  Cultural Transmission, Phylogenetics, and the Archaeological Record. In Mapping Our Ancestors: Phylogenetic Approaches in Anthropology and Prehistory, edited by Carl P. Lipo, Michael J. O’Brien, Mark Collard, Stephen J. Shennan pp. 169-184. Aldine, New York.