B. Hesselink, Gerhard Jannink & zonen te Enschede, 1853-1938. Jaren van rationalisatie en verzet. BMGN - Low Countries Historical Review, [S. l.], v. 102, n. 4, p. 668–670, 1987. DOI: 10.18352/bmgn-lchr.2881. Disponível em: https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-103233.. Acesso em: 30 jun. 2024.