Bornewasser, J.A. “In Memoriam prof.Dr. L.J. Rogier (1894-1974)”. BMGN - Low Countries Historical Review 90, no. 1 (January 1, 1975): 71–80. Accessed May 5, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-107746.