Cluster Analysis for the Determination of Innovative and Sustainable Oriented Regions in Europe. Studia Universitatis Vasile Goldiș Arad, Seria Științe Economice, [S. l.], v. 28, n. 2, p. 36–47, 2018. Disponível em: https://publicatii.uvvg.ro/index.php/studiaeconomia/article/view/330. Acesso em: 17 apr. 2026.