Groot, R. de. “J. Vis, Silhouetten. De Componist Leo Smit 1900-1943”. BMGN - Low Countries Historical Review 118, no. 1 (January 1, 2003): 127–129. Accessed May 7, 2024. https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-106676.