Κωνσταντάτος Χ. Economic integration in vertically differentiated markets. SPOUDAI Journal of Economics and Business, [S. l.], v. 52, n. 3, p. 60–84, 2002. Disponível em: https://spoudai.org/index.php/journal/article/view/459. Acesso em: 22 nov. 2024.