Rademaker, C.S.M. “H.J.M. Nellen, C.M. Ridderikhoff, Briefwisseling Van Hugo Grotius, XIII, 1642”. BMGN - Low Countries Historical Review 107, no. 2 (January 1, 1992): 334–335. Accessed May 4, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-104055.