Стефанский, В. Л. “Taphonomical Features of the Upper Eocenian Faunal Complex from Mandrykivka Beds (Dnipropetrovsk, Ukraine)”. Visnyk of V. N. Karazin Kharkiv National University, Series "Geology. Geography. Ecology", Vol. 38, no. 1049, Oct. 2015, pp. 58-62, https://periodicals.karazin.ua/geoeco/article/view/7670.