“U-PB Isotope Age and Tectonic Position of the Paleoproterosoic Andesite Porphyrites, Kursk Block, Eastern Sarmatia”. Proceedings of Voronezh State University. Series: Geology, no. 3, Sept. 2018, pp. 29-35, https://doi.org/10.17308/geology.2018.3/1559.