Weiss, R., Vladimir Milicic, & Thomas Schlotterback. (1991). Festschrift for Ulrich Mammitzsch: The Bessarabian-Germans: A brief Retroperspective. Western Washington University.
Lua i Stíl Chicago (17ú heag.)Weiss, Rudolf, Vladimir Milicic, agus Thomas Schlotterback. Festschrift for Ulrich Mammitzsch: The Bessarabian-Germans: A Brief Retroperspective. Bellingham ; Washington: Western Washington University, 1991.
Lua MLA (8ú heag.)Weiss, Rudolf, et al. Festschrift for Ulrich Mammitzsch: The Bessarabian-Germans: A Brief Retroperspective. Western Washington University, 1991.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.