Kriedel, N. (2008). HWWI Research Paper. HWWI.
Lua i Stíl Chicago (17ú heag.)Kriedel, Norbert. HWWI Research Paper. Hamburg: HWWI, 2008.
Lua MLA (8ú heag.)Kriedel, Norbert. HWWI Research Paper. HWWI, 2008.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.