FRYDRYCH, Jakub, and Stanislav BURIAN. “OCA INDEXES AND CONVERGENCE PROCESS IN EUROPE”. Scientific Annals of Economics and Business 64, no. 2 (June 29, 2017): 187–197. Accessed July 9, 2025. https://saeb.feaa.uaic.ro/index.php/saeb/article/view/1048.