TY - JOUR A1 - Green, R. G. A1 - Berkowitz, L. T1 - Some Conditions Facilitating the Occurrence of Aggression after the Observation of Violence JF - L. Berkowitz (Ed.), Roots of Aggression. A Re-Examination of the Frustration-Aggression Hypothesis, New York (Atherton Press) 1969, pp. 106-118. Y1 - 1969 ER -