M.A.W. Gerding, Vier eeuwen turfwinning. De verveningen in Groningen, Friesland, Drenthe en Overijssel tussen 1550 en 1950. BMGN - Low Countries Historical Review, [S. l.], v. 112, n. 2, p. 248–250, 1997. DOI: 10.18352/bmgn-lchr.4460. Disponível em: https://ojstest.minions.amsterdam/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-105144.. Acesso em: 2 jul. 2024.