Roelstraete, D. (2009). Olaf Nicolai: Apollo / With an essay by Dieter Roelstraete. Museum Boijmans Van Beuningen.
Lua i Stíl Chicago (17ú heag.)Roelstraete, Dieter. Olaf Nicolai: Apollo / With an Essay by Dieter Roelstraete. Rotterdam: Museum Boijmans Van Beuningen, 2009.
Lua MLA (8ú heag.)Roelstraete, Dieter. Olaf Nicolai: Apollo / With an Essay by Dieter Roelstraete. Museum Boijmans Van Beuningen, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.