TY JOUR TI Assessment of Karst Groundwater Vulnerability to Contamination as a Tool for Delineation of Source Protection Zones: A Case Study in the Crimean Mountains KW karst aquifer KW groundwater KW vulnerability to contamination KW Crimean Mountains KW sanitary protection zone KW assessment KW regional method KW water supply source KW phreatic zone JO Russian Journal of Earth Sciences AU Токарев, С.В. AU Амеличев, Г.Н. AU Брага, Е.В. AU Середа, А.И. PY 2024 IS 24 PB Геофизический центр Российской Академии Наук