Kolokontes , Argyrios D. “Symmetrical Approaches for the Non-Survey Regionalization Techniques: Ameliorating the Flegg’s Location Quotients”. Economy of Regions 21, no. 4 (December 12, 2025): 1188–1206. Accessed December 17, 2025. https://www.economyofregions.org/ojs/index.php/er/article/view/1080.