Schmidt, U., Necker-Eberhardt, E., Herzog, N., & Herzog, A. (2011). Bessarabia: German Colonists on the Black Sea. Germans from Russia Heritage Collection (GRHC).

Schmidt, Ute, Elvire Necker-Eberhardt, Nancy Herzog, and Alexander Herzog. Bessarabia: German Colonists on the Black Sea. Fargo, ND USA: Germans from Russia Heritage Collection (GRHC), 2011.

Schmidt, Ute, et al. Bessarabia: German Colonists on the Black Sea. Germans from Russia Heritage Collection (GRHC), 2011.