FREEDMAN, P. The Evolution of Servile Peasants in Hungary and in Catalonia: A comparison. Anuario de Estudios Medievales, [S. l.], v. 26, n. 2, p. 909–932, 1996. DOI: 10.3989/aem.1996.v26.i2.672. Disponível em: https://estudiosmedievales.revistas.csic.es/index.php/estudiosmedievales/article/view/672. Acesso em: 1 may. 2024.