TY  - RPRT
TI  - Learning sets and object-size effects in visual discrimination learning by raccoons.
AU  - J I JOHNSON
AU  - K M MICHELS
PY  - 1958
DO  - 10.1037/h0049010
UR  - https://pubmed.ncbi.nlm.nih.gov/13563713/
ID  - 13563713
ER  -