Reference

Andrezej Falniowski, Krystyna Mazan, Magdalena Szarowska, Andrzej Kozik (1996-1997): Tracing the viviparid evolution: soft part morphology and opercular characters (Gastropoda: Architaenioglossa: Viviparidae) – Malakologische Abhandlungen – 18: 193 - 211.