Jacobs, P. (1981). Carlo. Junge Welt.
Lua i Stíl Chicago (17ú heag.)Jacobs, Peter. Carlo. Berlin: Junge Welt, 1981.
Lua MLA (8ú heag.)Jacobs, Peter. Carlo. Junge Welt, 1981.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.