ROMANIUK, K. Ranking of European Union Member States Based on the Level of Knowledge Created by the Research and Development Sector. Olsztyn Economic Journal, [S. l.], v. 9, n. 1, p. 47–56, 2014. DOI: 10.31648/oej.3164. Disponível em: https://czasopisma.uwm.edu.pl/index.php/oej/article/view/3164. Acesso em: 18 may. 2024.