МатвеевA. В. “Paleogeographic Analysis of Calcareous Nannoplankton Distribution in Late Cretaceous of Southern Ukraine”. Visnyk of V. N. Karazin Kharkiv National University. Series Geology. Geography. Ecology 38, no. 1049 (October 13, 2015): 31-36. Accessed December 6, 2025. https://periodicals.karazin.ua/geoeco/article/view/7665.