TY  - RPRT
TI  - Support groups as open systems: a model for practice and research.
AU  - J H Schopler
AU  - M J Galinsky
PY  - 1993
DO  - 10.1093/hsw/18.3.195
UR  - https://pubmed.ncbi.nlm.nih.gov/8406224/
ID  - 8406224
ER  -