Proctor, Racial Hygiene, 95-101; Stefan Kuhl, The Nazi Connection: Eugenics, American Racism, and German National Socialism (New York, 1994).

Alberto Spektorowski and Elisabeth Mizrachi, «Eugenics and the Welfare State in Sweden: The Politics of Social Margins and the Idea of a Productive Society», Journal of Contemporary History, 39 (2004), 333-52; Alex Duval Smith and Maciej Zeremba, «Outcasts from Nordic Super-Race», Observer, 24 августа 1997 г., 6.