Ignatenko, I. M., I. I. Kosinova, and E. M. Ignatenko. “Methodology for Quality Assurance of Groundwater Resources Exploitation Within Belgorod Region”. Proceedings of Voronezh State University. Series: Geography. Geoecology, no. 4, Jan. 2023, pp. 111-7, doi:10.17308/geo/1609-0683/2022/4/111-117.