Huizinga, J.J. “T.U. Smeding, School in De Steigers. De Wording Van De Friese Lagere School in De Periode 1800-1857”. BMGN - Low Countries Historical Review, vol. 105, no. 3, Jan. 1990, pp. 442-4, https://doi.org/10.18352/bmgn-lchr.3266.