TY  - RPRT
TI  - Approach-avoidance responses to visual stimuli in frogs.
AU  - R Biersner
AU  - R Melzack
PY  - 1966
DO  - 10.1016/0014-4886(66)90139-7
UR  - https://pubmed.ncbi.nlm.nih.gov/5911099/
ID  - 5911099
ER  -