TY  - RPRT
TI  - Group dynamics and external life cycles.
AU  - H M FEINSTEIN
AU  - N E WAXLER
PY  - 1963
DO  - 10.1080/00207284.1963.11642650
UR  - https://pubmed.ncbi.nlm.nih.gov/13962753/
ID  - 13962753
ER  -