OSAER, A. J. Verschaeren, Julius Vuylsteke. Klauwaard & Geus (1836-1903). BMGN - Low Countries Historical Review, [S. l.], v. 103, n. 2, p. 276–277, 1988. DOI: 10.18352/bmgn-lchr.2952. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-103326.. Acesso em: 22 dec. 2024.