PRINS, W. A.M. Elias, Het Nationaal Syndicaat 1802-1805. BMGN - Low Countries Historical Review, [S. l.], v. 91, n. 3, p. 504–507, 1976. DOI: 10.18352/bmgn-lchr.1961. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-102123. Acesso em: 21 jan. 2022.