TY  - GEN
AU  - Zorina,Z A
AU  - Smirnova,A A
TI  - [The numerousness judgement by the hooded crow of a set consisting of 12-25 elements]
SN  - 0044-4677
PY  - 1997///0211
KW  - Animals
KW  - Birds
KW  - physiology
KW  - Choice Behavior
KW  - Discrimination, Psychological
KW  - Higher Nervous Activity
KW  - Mathematics
KW  - Photic Stimulation
KW  - methods
N1  - Publication Type: Comparative Study; Journal Article; Research Support, Non-U.S. Gov't
ER  -