found: Ickevåldsaktion, 2005:t.p. (Stellan Vinthagen)
found: Journal of resistance studies, 2015:page 3 (Editor: Stellan Vinthagen)
found: National Library of Sweden in VIAF, 4 January 2017(access point: Vinthagen, Stellan, 1964- )
found: Wikipedia, 4 January 2017(Stellan Vinthagen (born, October 13, 1964) is a professor of sociology, a scholar-activist, and the Inaugural Endowed Chair in the Study of Nonviolent Direct Action and Civil Resistance at the University of Massachusetts, Amherst, where he directs the Resistance Studies Initiative. His research is focused on resistance, power, social movements, nonviolent action, conflict transformation and social change. He has since 1980 been an educator, organizer and activist in several countries, and has participated in more than 30 nonviolent civil disobedience actions, for which he has served in total more than one year in prison.) - https://en.wikipedia.org/wiki/Stellan_Vinthagen