Karin Österman

Sex Differences in Covert Aggression Among Adults

K. Lagerspetz, K. Björkqvist, K. Österman, 1994 .

Cross-cultural evidence of female indirect aggression

Simha F. Landau, Gian Vittorio Caprara, G. Caprara, 1998 .

5 – The Development of Direct and Indirect Aggressive Strategies in Males and Females

K. Björkqvist, K. Österman, A. Kaukiainen, 1992 .