Kulyk, Viktoriya, and Rostyslav Sossa. “Determining the Tourist Attractive Regions by GIS Analysis Using Heatmaps”. Geodesy and Cartography 44, no. 1 (April 30, 2018): 22-27. Accessed July 7, 2024. https://jau.vgtu.lt/index.php/GAC/article/view/882.