ALBU1, L.-L. ., LUPU, . R. . and Cantemir CALIN, A. . (2020) “A Model to Simulate the Convergence Process in the EU and in the Balkans Region Based on Empirical Evidence ”, KnE Social Sciences, 4(1), pp. 116–128. doi: 10.18502/kss.v4i1.5983.