Hagiu, A., C. Bâldan, and M. Bărbulescu. “Analysis of the Evolution of Trade in the Danube Region Countries”. Journal of Danubian Studies and Research, vol. 14, no. 1, Nov. 2024, pp. 9-22, https://dj.univ-danubius.ro/index.php/JDSR/article/view/2907.