1. Condren, Michael. 2019. Self-directed universalists: Social heroes and value-oriented challenges to authority. Heroism Science 4 (2). https://doi.org/10.26736/hs.2019.02.08. https://scholarship.richmond.edu/heroism-science/vol4/iss2/8.
2. Csikszentmihalyi, Mihaly, Michael Condren, and Izabela Lebuda. 2017. Deviant heroes and social heroism in everyday life: Activists and artists. In Handbook of heroism and heroic leadership, ed. Scott T. Allison, George R. Goethals, and Roderick M. Kramer, 249–261. New York: Routledge/Taylor & Francis Group.
3. Franco, Zeno E., Kathy Blau, and Philip G. Zimbardo. 2011. Heroism: A conceptual analysis and differentiation between heroic action and altruism. Review of General Psychology 15 (2): 99–113. https://doi.org/10.1037/a0022672.
4. Franco, Zeno, Scott T. Allison, Elaine L. Kinsella, Ari Kohen, Matt Langdon, and Philip G. Zimbardo. 2016. Heroism research: A review of theories, methods, challenges, and trends. Journal of Humanistic Psychology, 1(15): 1–15.
5. Horvath, Peter. 1999. The organization of social action. Canadian Psychology/Psychologie Canadienne 40 (3): 221–231. https://doi.org/10.1037/h0086838.