GORGES IN THE MUNICIPALITY OF PIROT AS A POTENTIAL FOR GEOTOURISM DEVELOPMENT IN SOUTH-EAST SERBIA Autori: Milica Began, Tamara Višnić, Predrag Obradović Izdanje: SITCON 2015 - Singidunum International Tourism Conference DOI: 10.15308/sitcon-2015-264-266
Geoheritage Sites in the Function of Geotourism Development in the Republic of Serbia Autori: Tamara Višnić, Milica Began Izdanje: Synthesis 2015 - International Scientific Conference of IT and Business-Related Research DOI: 10.15308/Synthesis-2015-552-557