TY  - RPRT
TI  - Shock intensity and duration interactions on free-operant avoidance behavior.
AU  - J D Leander
PY  - 1973
DO  - 10.1901/jeab.1973.19-481
UR  - https://pubmed.ncbi.nlm.nih.gov/16811678/
ID  - 16811678
ER  -