Klanten, R., Ehmann, S., & Schulze, F. (2011). Doppelganger: Images of the human being / [ed. by Robert Klanten, Sven Ehmann, Floyd Schulze. Pref. by Robert Klanten]. Gestalten.
Lua i Stíl Chicago (17ú heag.)Klanten, Robert, Sven Ehmann, agus Floyd Schulze. Doppelganger: Images of the Human Being / [ed. by Robert Klanten, Sven Ehmann, Floyd Schulze. Pref. by Robert Klanten]. Berlin: Gestalten, 2011.
Lua MLA (8ú heag.)Klanten, Robert, et al. Doppelganger: Images of the Human Being / [ed. by Robert Klanten, Sven Ehmann, Floyd Schulze. Pref. by Robert Klanten]. Gestalten, 2011.
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