Доротяк, Ю.Б. 2018. Biostratigraphic partition of the Upper Jurassic and Lower Cretaceous (Oxfordian - Lower Berriasian) deposits of the Crimean Mountains for foraminiphers. Visnyk of V. N. Karazin Kharkiv National University. Series Geology. Geography. Ecology. 49 (Dec. 2018), 49-58. DOI:https://doi.org/10.26565/2410-7360-2018-49-04.