2006 IUCN Red List of Threatened Species.
<www.iucnredlist.org>.
cited October 26, 2007.

Balashov I. & Gural-Sverlova N. 2012.
An annotated checklist of the terrestrial molluscs of Ukraine.
Journal of Conchology.
41 (1): 91-109.
2006 IUCN Red List of Threatened Species. <www.iucnredlist.org>. cited October 26, 2007.
Balashov I. & Gural-Sverlova N. 2012. An annotated checklist of the terrestrial molluscs of Ukraine. Journal of Conchology. 41 (1): 91-109.
Ruthenica filograna