Lakićević, Marija, and Danijela Durkalić. “MEASUREMENT OF TOURISM MARKET PERFORMANCE IN EU COUNTRIES: RESULTS OF PROMETHEE - GAIA APPROACH”. Tourism International Scientific Conference Vrnjačka Banja - TISC 3, no. 2 (June 2, 2018): 99-116. Accessed December 6, 2021. http://www.tisc.rs/proceedings/index.php/hitmc/article/view/49.