Fabry, H. (1989). zz - qwm. Kohlhammer.
Lua i Stíl Chicago (17ú heag.)Fabry, Heinz-Josef. Zz - Qwm. Stuttgart [u.a.]: Kohlhammer, 1989.
Lua MLA (8ú heag.)Fabry, Heinz-Josef. Zz - Qwm. Kohlhammer, 1989.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.