Vasylchenko, Anastasiia. “Analysis of the Key Elements of the Mechanism of Formation of the System of Intra-Cluster Interaction”. Journal of Geography, Politics and Society 11, no. 2 (June 30, 2021): 44–49. Accessed May 2, 2024. https://czasopisma.bg.ug.edu.pl/index.php/JGPS/article/view/5924.