TY  - RPRT
TI  - Free-operant avoidance conditioning in human subjects.
AU  - R ADER
AU  - R TATUM
PY  - 1961
DO  - 10.1901/jeab.1961.4-275
UR  - https://pubmed.ncbi.nlm.nih.gov/13681476/
ID  - 13681476
ER  -