Witte, E.H. και Heitkamp, I. 2006. Empirical research on ethics: The influence of social roles on decisions and on their ethical justification. ΕΛΕΥΘΕΡΝΑ. 3, (Φεβρουαρίου 2006), 55–82. DOI:https://doi.org/10.26248/eleutherna.v3i0.141.