TY  - RPRT
TI  - Emotionality, conditioned helplessness, and escape conditioning.
AU  - S W Shafer
AU  - M W Stephens
PY  - 1974
DO  - 10.2466/pr0.1974.35.3.1051
UR  - https://pubmed.ncbi.nlm.nih.gov/4445418/
ID  - 4445418
ER  -