Bosscher, Ph.M. “Th. Roodhuyzen, De Admiraliteit Van Friesland”. BMGN - Low Countries Historical Review 119, no. 1 (January 1, 2004): 92–93. Accessed March 29, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-106861.