References
- Hartmann , H. 1950 . “ Comments on the psychoanalytic theory of the ego ” . In Essays on Ego Psychology , 113 – 141 . New York : Int. Univ. Press . 1964
- _____ . 1953 . “ Contribution to the metapsychology of schizophrenia ” . In Essays on Ego Psychology , 182 – 206 . New York : Int. Univ. Press . 1964
- _____ , Kris , E. and Loewenstein , R. M. 1949 . Notes on the theory of aggression . Psychoanal. Study Child , 3/4 : 9 – 36 . New York: Int. Univ. Press