“H. Van Zon, Tachtig Jaar RIVM”. BMGN - Low Countries Historical Review 108, no. 2 (January 1, 1993): 308–309. Accessed November 22, 2024. https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-104241.