Жабин, А. В., and Д. А. Дмитриев. “Metals and Their Compounds in the Upper Cretaceous Sediments of the Southeast Part of the Voronezh Anteclise”. Proceedings of Voronezh State University. Series: Geology, no. 3, Apr. 2019, pp. 5-9, doi:10.17308/geology.2019.3/1806.