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2. Holub, Robert C.: “Nietzsche: Socialist, Anarchist, Feminist”, in Lynne Tatlock / Matt Erlin (eds.), German Culture in Nineteenth-Century America: Reception, Adaptation, Transformation, Rochester, NY 2005, 129–49
3. Overbeck, Franz: Erinnerungen an Friedrich Nietzsche, Berlin 2011
4. Poliakov, Léon: The Aryan Myth: A History of Racist and Nationalistic Ideas in Europe, New York 1996
5. Ratner-Rosenhagen, Jennifer: American Nietzsche: A History of an Icon and His Ideas, Chicago 2011