TIJN, T. van; WOLTER, J. Woord vooraf. BMGN - Low Countries Historical Review, [S. l.], v. 86, n. 1, p. 3–3, 1971. DOI: 10.18352/bmgn-lchr.1641. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-107755. Acesso em: 6 dec. 2023.