1.
Krul W. J.F. Heijbroek, E.L. Wouthuysen, Kunst, kennis en commercie. De kunsthandelaar J. H. de Bois 1878-1946. BMGN-LCHR [Internet]. 1994 Jan. 1 [cited 2024 Nov. 21];109(3):494-5. Available from: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-104485