1. Sex differences in general intelligence among high school graduates: some results from Estonia;Allik;Personality and Individual Differences,1999
2. Affective disorders and suicide risk: a reexamination;Bostwick;American Journal of Psychiatry,2000
3. Evaluation of an evolutionary model of self-preservation and self-destruction;Brown;Suicide and Life-Threatening Behavior,1999
4. Evolutionary psychology: The new science of the mind;Buss,1999
5. Carls, W. (1986). Intelligenz und Persönlichkeit suizidaler Jugendlicher [Intelligence and personality of suicidal adolescents]. In F. Specht, & A. Schmidtke (Eds.), Selbstmordhandlungen bei Kindern und Jugendlichen: Proceedings der 3. Jahrestagung der Arbeitsgemeinschaft zur Erforschung suizidalen Verhaltens (pp. 108–119). Regensburg: Roderer