YSEBAERT, W. K. Heidecker, Charters and the use of the written word in medieval society. BMGN - Low Countries Historical Review, [S. l.], v. 117, n. 2, p. 223–224, 2002. DOI: 10.18352/bmgn-lchr.5668. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-106508. Acesso em: 20 apr. 2024.