Matlaj, L.M. “Calcareous Nannoplankton in Cretaceous Rocks of the North-West Part of the Crimean Continental Slope”. Reports of the National Academy of Sciences of Ukraine, no. 12 (December 26, 2024): 57–64. Accessed January 10, 2025. https://nasu-periodicals.org.ua/index.php/dp/article/view/12901.