“B. Oosterwijk, Reder in Rotterdam. Willem Ruys (1809-1889)”. BMGN - Low Countries Historical Review 107, no. 2 (January 1, 1992): 350–351. Accessed July 2, 2024. https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-104066.