NELLEN, H. A. Jönsson, Letters from sir James Spens and Jan Rutgers. BMGN - Low Countries Historical Review, [S. l.], v. 124, n. 1, p. 105–107, 2009. DOI: 10.18352/bmgn-lchr.6908. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-107951. Acesso em: 25 apr. 2024.