De feodaliteit in Engeland van Willem de Veroveraar tot Magna Carta. BMGN - Low Countries Historical Review, [S. l.], v. 89, n. 2, p. 212–224, 1974. DOI: 10.18352/bmgn-lchr.1816. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-101976.. Acesso em: 18 jul. 2024.