TY  - RPRT
TI  - Learned helplessness in groups.
AU  - D K Simkin
AU  - J P Lederer
AU  - M E Seligman
PY  - 1983
DO  - 10.1016/0005-7967(83)90079-7
UR  - https://pubmed.ncbi.nlm.nih.gov/6661147/
ID  - 6661147
ER  -