TY  - RPRT
TI  - Counting behavior in baboons: an error-contingency reinforcement schedule.
AU  - P K Levison
AU  - J D Findley
PY  - 1967
DO  - 10.2466/pr0.1967.20.2.393
UR  - https://pubmed.ncbi.nlm.nih.gov/4962990/
ID  - 4962990
ER  -