TY  - RPRT
TI  - Phases in group problem-solving.
AU  - R F BALES
AU  - F L STRODTBECK
PY  - 1951
DO  - 10.1037/h0059886
UR  - https://pubmed.ncbi.nlm.nih.gov/14880365/
ID  - 14880365
ER  -