Gorbunov, Vladimir Konstantinovich, and Vladimir Pavlovich Krylov. “Region Effective Production Assets and Their Assessment By The Production Function Method”. Economy of Regions 11, no. 3 (September 21, 2015): 334–347. Accessed June 17, 2026. https://www.economyofregions.org/ojs/index.php/er/article/view/2282.