1. Abane, M., Buffard, G., Dussuyer, I., Morel, J., Quenard, O., & Vedrinne, J. (1978). Some comparative factors of suicidal behavior in young civilians and servicemen. Proceedings of the 9th International Conference for Suicide Prevention and Crisis Intervention. Helsinki: Finnish Association for Mental Health.
2. Angst, J., & Hochstrasser, B. (1994). Recurrent brief depression: The Zurich study. Journal of Clinical Psychiatry, 55, 3–9.
3. Beck, A. T., Rush, A. J., Shaw, B. F., & Emery, G. (1979). Cognitive therapy of depression. New York, Guilford Press.
4. Beck, A. T., Steer, R. A., Kovacs, M., & Garrison, B. (1985). Hopelessness and eventual suicide: A 10-year prospective study of patients hospitalized with suicidal ideation. American Journal of Psychiatry 142(5), 559–563.
5. Blair-West, G. W., Mellshop, G. W., & Eyeson-Annan, M. L. (1997). Down-rating lifetime suicide risk in major depression. Acta Psychiatrica Scandinavica, 95, 259–263.