“T.U. Smeding, School in De Steigers. De Wording Van De Friese Lagere School in De Periode 1800-1857”. BMGN - Low Countries Historical Review 105, no. 3 (January 1, 1990): 442–444. Accessed November 22, 2024. https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-103717.