Vergne, P. (2006). Heart of Darkness: Kai Althoff, Ellen Gallagher and Edgar Cleijne, Thomas Hirschhorn. Walker Art Center.
Lua i Stíl Chicago (17ú heag.)Vergne, Philippe. Heart of Darkness: Kai Althoff, Ellen Gallagher and Edgar Cleijne, Thomas Hirschhorn. Minneapolis: Walker Art Center, 2006.
Lua MLA (8ú heag.)Vergne, Philippe. Heart of Darkness: Kai Althoff, Ellen Gallagher and Edgar Cleijne, Thomas Hirschhorn. Walker Art Center, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.