TY  - RPRT
TI  - Capuchin cognitive ecology: cooperation based on projected returns.
AU  - Frans B M de Waal
AU  - Jason M Davis
PY  - 2003
DO  - 10.1016/s0028-3932(02)00152-5
UR  - https://pubmed.ncbi.nlm.nih.gov/12459220/
ID  - 12459220
ER  -