Makovníková, Jarmila, Boris Pálka, Širáň Miloš, Miroslava Kizeková, and Radoslava Kanianska. 2019. “The Potential of Regulating Ecosystem Service – Filtering Potential for Inorganic Pollutants – Supplied by Soils of Slovakia”. Hungarian Geographical Bulletin 68 (2), 177-85. https://doi.org/10.15201/hungeobull.68.2.5.