2021. Lower Carboniferous calcareous algae and foraminifera of the middle part of the central paraxial zone of the Dono-Dnieper Depression (Ukraine). Visnyk of V. N. Karazin Kharkiv National University. Series Geology. Geography. Ecology. 55 (Dec. 2021), 52–71. DOI:https://doi.org/10.26565/2410-7360-2021-55-04.