TY  - RPRT
TI  - Problem diversity and familiarity in multiple discrimination learning by monkeys.
AU  - A J Riopelle
AU  - W H Moon
PY  - 1968
DO  - 10.1016/0003-3472(68)90113-9
UR  - https://pubmed.ncbi.nlm.nih.gov/4966468/
ID  - 4966468
ER  -