1. Ackerman, N. S.: Dynamic patterns in group psychotherapy. Psychiatry, 7:341–48, 1944.
2. Altshuler, I. M.: One year's experience with group psychotherapy. Ment. Hyg., 24: 190–6, 1940.
3. Bender, L.: Group activities on a children's ward as methods of psychotherapy. Am. J. Psychiat., 93:1151–70, 1937.
4. Devereux, G.: The social structure of a schizophrenic ward. J. Clin. Psychopathol., 6:231–65, 1944.
5. Dynes, J. B., and Hamilton, F. J.: Group therapy of psychiatric war casualties. U. S. Naval M. Bull., 44:549, 1945.