Baltic Business and Socio-Economic Development 2007. Zeitschrift für Ostmitteleuropa-Forschung, Marburg, v. 59, n. 2, p. 253–254, 2010. DOI: 10.25627/20105929040. Disponível em: https://openjournals.osmikon.de/zfo/article/view/9040. Acesso em: 31 oct. 2026.