“J. Frieswijk, Ferdinand Domela Nieuwenhuis. De Apostel Van De Friese Arbeiders”. BMGN - Low Countries Historical Review 105, no. 3 (January 1, 1990): 466–467. Accessed November 22, 2024. https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-103736.