Rusiniak, Piotr, Anna Ruszczyńska, Katarzyna Wątor, Ewa Bulska, and Ewa Kmiecik. 2020. “Methodological Aspects Concerning Sampling and Determination of Total Selenium and Selenium Species in Geothermal Waters”. Bulletin of Geography. Physical Geography Series, no. 18 (June):5-16. https://doi.org/10.2478/bgeo-2020-0001.