1.
Mellink A. J. Frieswijk, Socialisme in Friesland 1880-1900. BMGN-LCHR [Internet]. 1979 Jan. 1 [cited 2024 Dec. 22];94(2):316-7. Available from: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-102284