Barents, E. (2001). Axel Hütte: As dark as light. Schirmer/Mosel.
Lua i Stíl Chicago (17ú heag.)Barents, Els. Axel Hütte: As Dark as Light. München: Schirmer/Mosel, 2001.
Lua MLA (8ú heag.)Barents, Els. Axel Hütte: As Dark as Light. Schirmer/Mosel, 2001.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.