Jana Kolačkovská, Ľubomír Štrba, Branislav Kršák, Csaba Sidor. CHALLENGE OF GEOPARK IN PROTECTED AREA: AN EXAMPLE OF SILICA PLATEAU AS PART OF PROPOSED SILICA GEOPARK IN SLOVAK KARST NATIONAL PARK. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Ecology, Economics, Education and Legislation, 2020, pp. 115-122. https://doi.org/10.5593/sgem2020/5.1/s20.015