Ryabceva, Yu. S. “Microscopic Shell Structure in the gastropod’s Family Viviparidae from Ukraine: Taxonomic Aspect”. Reports of the National Academy of Sciences of Ukraine, no. 3 (March 28, 2015): 135–141. Accessed July 11, 2026. https://nasu-periodicals.org.ua/index.php/dp/article/view/14172.