Angst, J. and Perris, C.: Nosology of Endogenous Depression: a Comparison of the Findings of Two Studies . Arch. Psychiat. Nervenkr. (1968), 210, 373-386.
2.
Beck, J.C. and Worthen, J.C.: Precipitating Stress, Crisis Theory and Hospitalization in Schizophrenia and Depression. Arch. Gen. Psychiatr. (1972), 26, 123-129.
3.
Becker, J.: Affective Disorders. Morristown, New Jersey, General Learning Press, 1977.
4.
Brown, F.: Depression and Childhood Bereavement. J. Ment. Sci. (1961), 107, 754-777.
5.
D'Elia, G. and Perris, C.: Childhood Environment and Bipolar and Unipolar Recurrent Depressive Psychosis . Proc. IV U.E.P. Congr. Stockholm (1971), 53-62.
Jacobs, S.C., Prusoff, B.A. and Paykel, E.S.: Recent Life Events in Schizophrenia and Depression. Psychol. Med. (1974), 4, 444-453.
8.
Keith, H., Brodie, H. and Leff, M.J.: Bipolar Depression: a Comparative Study of Patient Characteristics. Am. J. Psychiatr. (1971), 127, 1086-1091.
9.
Levi, L.D., Fales, C.H., Stern, M. and Sharp, V.H.: Separation and Attempted Suicide. Arch. Gen. Psychiatr. (1966), 15, 158-165.
10.
Murphy, D.L. and Weiss, R.: Reduced Monoamine-Oxidase Activity in Blood Platelets from Bipolar Depressed Patients. Am. J. Psychiatr. (1972), 129, 141-148.
11.
Patrick, V., Dunner, D.L. and Fieve, R.R.: Life Events and Primary Affective Illness. Acta Psychiat. Scand. (1978), 58, 48-55.
12.
Paykel, E.S., Myers, J.K., Dienelt, M.N., Klerman, G.L., Lindenthal, J.J. and Pepper, M.P.: Life Events and Depression: a Controlled Study. Arch. Gen. Psychiatr. (1969), 21, 753-760.
13.
Perris, C.: A Study of Bipolar (Manic-Depressive) and Unipolar Recurrent Depressive Psychoses . Acta Psychiat. Scand. (1966), Supl. 194.
14.
Rafaelsen, O.J., in Classification and Prediction of Outcome of Depression. (Editor: J. Angst). Stuttgart , F. K. Schattauer Verlag, 1974.
15.
Sethi, B.B.: Relationship of Separation to Depression. Arch. Gen. Psychiatr. (1964), 10, 486-495.
16.
Thomson, K.C. and Hendrie, H.C.: Environmental Stress in Primary Depressive Illness. Arch. Gen. Psychiatr. (1972), 26, 130-132.