Vergne, P. (2006). Heart of darkness: Kai Althoff, Ellen Gallagher and Edgar Cleijne, Thomas Hirshhorn.
Lua i Stíl Chicago (17ú heag.)Vergne, Philippe. Heart of Darkness: Kai Althoff, Ellen Gallagher and Edgar Cleijne, Thomas Hirshhorn. Minneapolis, 2006.
Lua MLA (8ú heag.)Vergne, Philippe. Heart of Darkness: Kai Althoff, Ellen Gallagher and Edgar Cleijne, Thomas Hirshhorn. 2006.
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