Töttel, U., & Büchler, H. (2011). Research Conferences on Organised Crime at the Bundeskriminalamt in Germany 2008 - 2010. Luchterhand.
Lua i Stíl Chicago (17ú heag.)Töttel, Ursula, agus Heinz Büchler. Research Conferences on Organised Crime at the Bundeskriminalamt in Germany 2008 - 2010. Köln: Luchterhand, 2011.
Lua MLA (8ú heag.)Töttel, Ursula, agus Heinz Büchler. Research Conferences on Organised Crime at the Bundeskriminalamt in Germany 2008 - 2010. Luchterhand, 2011.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.