1. Wender, Louis: The dynamics of group psychotherapy and its application. J. N. M. D., 84:54, 1936.
2. —: Group psychotherapy: a study of its application.Psychiat. Quart., 14: 708, 1940.
3. Schilder, Paul: Results and problems of group psychotherapy in severe neuroses. Ment. Hyg., 23:87, 1939.
4. Freud, Sigmund: Group Psychology and the Analysis of the Ego., P. 65. Hogarth Press. London. 1940.
5. Ibid.— P. 79.—.