TY  - RPRT
TI  - The effect of shock intensity upon responding under a multiple-avoidance schedule.
AU  - R W Powell
PY  - 1970
DO  - 10.1901/jeab.1970.14-321
UR  - https://pubmed.ncbi.nlm.nih.gov/16811479/
ID  - 16811479
ER  -