Холина, Н.В. 2018. Geochemical typization and sources of melts of the neoarchean ultra-potassic rhyolites of the kursk block, Voronezh crystalline massif. Proceedings of Voronezh State University. Series: Geology. 1 (Jan. 2018), 46-57. DOI:https://doi.org/10.17308/geology.2018.1/1428.