VILPIŠAUSKAS, Ramūnas. Regional integration in Europe: The analysis of intra-Baltic economic cooperation. Politologija, [S. l.], v. 14, n. 2, p. 57–117, 1999. DOI: 10.15388/Polit.1999.2.3. Disponível em: https://test.zurnalai.vu.lt/politologija/article/view/41392. Acesso em: 25 oct. 2025.