TY  - RPRT
TI  - Group therapy: what specific therapeutic advantages?
AU  - J A Guttmacher
AU  - L Birk
PY  - 1971
DO  - 10.1016/0010-440x(71)90037-x
UR  - https://pubmed.ncbi.nlm.nih.gov/5117074/
ID  - 5117074
ER  -