Iuliana Ioana Merce, Elena Pet, Ioan Petroman, Tiberiu Iancu, Ioana Anda Milin. THE PRINCIPLES OF ECOTOURISM - INDICATOR FOR THE DEVELOPMENT OF ECOTOURISM DESTINATIONS. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Ecology, Economics, Education and Legislation, 2017, pp. 979-984. https://doi.org/10.5593/sgem2017/51/s20.128