“Erratum: Malkina, M. (2021). Sustainability of Regional Budget Revenues and Its Sources. Economy of Regions, 17(4), 1376–1389. Https: doi.org 10.17059 ekon.Reg.2021-4-23”. Economy of Regions 18, no. 1 (March 31, 2022): 311. Accessed April 7, 2026. https://www.economyofregions.org/ojs/index.php/er/article/view/23.