Tkachev, A. V., Vishnevskaya, N. A., & Chesalova, E. I. (2023). Specialisation of rare earth deposits according to the elemental composition of their ores. Proceedings of Voronezh State University. Series: Geology, (2), 57-72. https://doi.org/10.17308/geology/1609-0691/2023/2/57-72