1. Abraham, K.Selected Papers on Psychoanalysis. Chapter 26: A short study of the development of the libido, viewed in the light of mental disorders (1924). Part I–Manic depressive states and the pre-genital levels of the libido, 4. Notes on the psychoanalysis of melancholia. London: Hogarth Press, 1942, p. 453.
2.
2. Deutsch, H.Ueber Zufriedenheit, Glück und Ekstase. Internat. Ztschr. f. Psychoanal., 13:410–419, 1927.
3.
3. Deutsch, H.Zur Psychologie der manisch-depressiven Zustände, inbesondere der chronischen Hypomanie. Internat. Ztschr. f. Psychoanal., 19:18, 1933.
4.
4. Deutsch, H. Mid-Winter Meeting, American Psychoanalytic Association, December, 1950.