Reference

Andrezej Falniowski, Wojciech Fialkowski, Magdalena Szarowska, Krystyna Mazan (1998-1999): Shell biom etry characters in species discrimination and classification within the genus Viviparus (Gastropoda: Architaenioglossa: Viviparidae) – Malakologische Abhandlungen – 19: 29 - 45.