“Paleoproterozoic Andesite Porphyrites, Kursk Block, Eastern Sarmatia: Geochemistry and Sources of Melts”. Proceedings of Voronezh State University. Series: Geology, no. 1 (February 18, 2019): 26–38. Accessed April 5, 2026. https://journals.vsu.ru/geology/article/view/1701.