Dick, B.
(1975) A Ten-Year Study of Out-Patient Analytic Group Therapy', British Journal of Psychiatry, 127: 365.
2.
Malan, D.
, F.H.G. Balfour, V.G. Hood and A.M.N. Shooter (1976) `Group Psychotherapy: A Long-term Follow-up Study', Archives of General Psychiatry, 33: 1303-1315.