Klingbeil, K. (1987). Pastell. Seemann.
Lua i Stíl Chicago (17ú heag.)Klingbeil, Karl-Heinz. Pastell. Leipzig: Seemann, 1987.
Lua MLA (8ú heag.)Klingbeil, Karl-Heinz. Pastell. Seemann, 1987.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.