Dymchenko, Olena, Victoria Beliavtseva, Olha Rudachenko, and Yurii Tararuev. “Theoretical Background of Competitiveness Index Determination in Regions ”. Journal of Vasyl Stefanyk Precarpathian National University 5, no. 3-4 (December 20, 2018): 44–49. Accessed May 6, 2024. https://journals.pnu.edu.ua/index.php/jpnu/article/view/3475.