Jansma, T.S. “O. Nübel, Pompejus Occo 1483 Bis 1537 Fuggerfaktor in Amsterdam”. BMGN - Low Countries Historical Review 89, no. 2 (January 1, 1974): 291–293. Accessed April 20, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-101981.