TY - JOUR A1 - Hartmann, Heinz A1 - Kris, E. A1 - Loewenstein, R. M. T1 - Notes on the Theory of Aggression JF - A. Freud et al. (Eds.), The Psychoanalytic Study of the Child, Vol. III/IV, New York (International Universities Press) 1949, pp. 9-36. Y1 - 1949 N1 - Marks in the copy ER -