TY  - RPRT
TI  - Methodological difficulties in demonstrating learned helplessness in humans.
AU  - A H Winefield
PY  - 1982
DO  - 10.1080/00221309.1982.9709933
UR  - https://pubmed.ncbi.nlm.nih.gov/7175513/
ID  - 7175513
ER  -