Bilchak, Vasiliy, and Natalia Duplenko. “The Regularities of the Regional Asymmetry of Small and Medium Enterprise Development”. Olsztyn Economic Journal 8, no. 3 (December 9, 2013): 211–220. Accessed November 23, 2024. https://czasopisma.uwm.edu.pl/index.php/oej/article/view/3231.