1. Is nut cracking in wild chimpanzees a cultural behavior?;Boesch;Journal of Human Evolution,1994
2. Culture and the Evolutionary Process;Boyd,1985
3. An evolutionary model of social learning: The effects of spatial and temporal variation;Boyd,1988
4. Social learning as an adaptation;Boyd;Lectures on Mathematics in the Life Sciences,1989
5. Imitation in animals: History, definitions, and interpretations from the psychological laboratory;Galef,1988