GOULIELMOS, A. M.; SITZIMIS, G. Measuring Market Concentration in the Aegean Ferry System. SPOUDAI Journal of Economics and Business, [S. l.], v. 62, n. 1-2, p. 7–27, 2012. Disponível em: https://spoudai.org/index.php/journal/article/view/245. Acesso em: 22 nov. 2024.