I. Rohach, T. Yerem, and Yerem К., “TBiogeochemistry of fluor trace element in tne Transcarpathian region of Ukraine”, Environment & Health, vol. 74, no. 3, pp. 13–16, Jul. 2015, Accessed: Aug. 25, 2026. [Online]. Available: https://dovkil-zdorov.kiev.ua/journal/article/view/599