Grün, I. (1989). Das Steinplaster. Detail.
Lua i Stíl Chicago (17ú heag.)Grün, Ingo. "Das Steinplaster." Detail 1989.
Lua MLA (8ú heag.)Grün, Ingo. "Das Steinplaster." Detail, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.