“Groundwater Monitoring in the Area of Sulphide Copper-Nickel Deposits of Novokhopersk Ore District (Elan Site)”. 2023. Proceedings of Voronezh State University. Series: Geology, no. 1 (March): 106-19. https://doi.org/10.17308/geology/1609-0691/2023/1/106-119.