SAMSONOWICZ, H. The Rise and Fall of ?The World of Economy?: Eastern Europe in 9th?12th Centuries. Journal of World-Systems Research, [S. l.], v. 6, n. 2, p. 518–523, 2000. DOI: 10.5195/jwsr.2000.215. Disponível em: https://jwsr.pitt.edu/ojs/jwsr/article/view/215. Acesso em: 18 apr. 2024.