Spitsin, Vladislav, Darko B. Vuković, Elena Akerman, Ludmila Borilo, and Natalia Chistyakova. “REGIONAL ISSUE, INNOVATION, AND THE ECOLOGICAL FOOTPRINT”. Journal of the Geographical Institute “Jovan Cvijić” SASA 73, no. 2 (August 18, 2023): 221–236. Accessed May 14, 2024. https://ojs.gi.sanu.ac.rs/index.php/zbornik/article/view/574.