Billen, J. (1975). Was will Literatur? Schöningh.
Lua i Stíl Chicago (17ú heag.)Billen, Josef. Was Will Literatur? Paderborn: Schöningh, 1975.
Lua MLA (8ú heag.)Billen, Josef. Was Will Literatur? Schöningh, 1975.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.