Fritschy, W.J.M.F. “G. Wiersma, Johanna Borski. Financier Van Nederland 1764-1846”. BMGN - Low Countries Historical Review 115, no. 1 (January 1, 2000): 85–86. Accessed November 23, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-105907.