Knecht-van Eekelen, A. de. “L.F. Bakker, Nederlandse Orthopaedische Vereniging 1898-1998. De Geschiedenis Van De Orthopaedie in Nederland”. BMGN - Low Countries Historical Review 115, no. 2 (January 1, 2000): 337–338. Accessed March 28, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-106050.