TY  - RPRT
TI  - Compounding discriminative stimuli controlling free-operant avoidance.
AU  - H H Emurian
AU  - S J Weiss
PY  - 1972
DO  - 10.1901/jeab.1972.17-249
UR  - https://pubmed.ncbi.nlm.nih.gov/16811586/
ID  - 16811586
ER  -