TY  - RPRT
TI  - Meaning and mind in monkeys.
AU  - R M Seyfarth
AU  - D L Cheney
PY  - 1992
DO  - 10.1038/scientificamerican1292-122
UR  - https://pubmed.ncbi.nlm.nih.gov/1439710/
ID  - 1439710
ER  -