Ervin Staub, «The Roots of Goodness: The Fulfillment of Basic Human Needs and the Development of Caring, Helping and Nonaggression, Inclusive Caring, Moral Courage, Active Bystandership, and Altruism Born of Suffering», in Moral Motivation Through the Life Span: Theory, Research, Applications, eds. Gustavo Carlo and Carolyn Edwards (Lincoln: Nebraska University Press, 2005),33–72; Ervin Staub and Johanna Vollhardt, «Altruism Born of Suffering: The Roots of Caring and Helping After Victimization and Other Trauma», American Journal of Orthopsychiatry 78, no. 3 (2008): 267–280.
