Jansen, G. (2005). Same, same, but different: Ulrich Strothjohann. König.
Lua i Stíl Chicago (17ú heag.)Jansen, Gregor. Same, Same, but Different: Ulrich Strothjohann. Köln: König, 2005.
Lua MLA (8ú heag.)Jansen, Gregor. Same, Same, but Different: Ulrich Strothjohann. König, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.