1. Altmann J (1974) Observational study of behavior: sampling methods. Behav 49:227–265
2. Altmann J (1978) Infant independence in yellow baboons. In: Burghardt GM, Bekoff M (eds) The development of behavior: comparative and evolutionary aspects. Garland Press, New York, pp 253–277
3. Altmann J (1980) Baboon mothers and infants. Harvard University Press, Cambridge
4. Altmann J, Altmann SA (1979) Demographic constraints on behavior and social organization. In: Bernstein I, Smith EO (eds) Primate ecology and human evolution. Garland Press, New York, pp 47–64
5. Balasubramaniam KN, Berman CM (2017) Grooming interchange for resource tolerance: biological markets principles within a group of free-ranging rhesus macaques. Behaviour 154:145–1176. https://doi.org/10.1163/1568539X-00003462