VRIES, P. P.A.M. Geurts, F.A.M. Messing, Theoretische en methodologische aspecten van de economische en sociale geschiedenis, I en II. BMGN - Low Countries Historical Review, [S. l.], v. 98, n. 4, p. 598–601, 1983. DOI: 10.18352/bmgn-lchr.2435. Disponível em: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-102634. Acesso em: 8 feb. 2023.