1. Renewable Energy Sources Solutions in Sobrance District and Its Impact on Geotourism
:PČOLINSKÁ, Lenka - STRAJŇÁK, Sergej - JABLONSKÁ, Jana. Renewable Energy Sources Solutions in Sobrance District and Its Impact on Geotourism. In Geoparks, geoheritage and geoconservation & IRSE: history of Central European mining : international twin conference : Salgótarján, Hungary, 4.-6. October 2012. - [Salgótarján] : University of Miskolc, Technical University of Košice, 2012, s. 18.