Hoffmann, M., & Mettler, M. (1963). Gertianosch. Pannonia.
Lua i Stíl Chicago (17ú heag.)Hoffmann, Matthias, agus Michael Mettler. Gertianosch. Freilassing: Pannonia, 1963.
Lua MLA (8ú heag.)Hoffmann, Matthias, agus Michael Mettler. Gertianosch. Pannonia, 1963.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.