SIGMOND, J. G.G. Simpson, Scotland and the Low Countries 1124-1994. BMGN - Low Countries Historical Review, [S. l.], v. 113, n. 3, p. 365–367, 1998. DOI: 10.18352/bmgn-lchr.4737. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-105449. Acesso em: 5 may. 2024.