1. Bakan, D. (1966). The duality of human existence: Isolation and communion in Western man. Boston: Beacon Press.
2. Borkenau, P., & Ostendorf, F. (2008). NEO-FFI: Neo-Fünf-Faktoren-Inventar nach Costa und McCrae, Manual (2. Aufl.). Göttingen: Hogrefe.
3. Caspary, R., Spitzer, M., Hüther, G., & Roth, G. (Hrsg.). (2012). Lernen und Gehirn: Der Weg zu einer neuen Pädagogik. Hamburg: Nikol.
4. Casto, K. V., & Edwards, D. A. (2016). Testosterone and reconciliation among women: After-competition testosterone predicts prosocial attitudes towards opponents. Adaptive Human Behavior and Physiology, 2(3), 220–233.
5. Cilliers, F. J., Schuwirth, L. W., Herman, N., Adendorff, H. J., & van der Vleuten, C. P. (2012). A model of the pre-assessment learning effects of summative assessment in medical education. Advances in Health Sciences Education, 17(1), 39–53.