1.
Blockmans W. R. Doehaerd, Oeconomica mediaevalia. BMGN-LCHR [Internet]. 1987 Jan. 1 [cited 2024 Dec. 22];102(1):57-8. Available from: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-103043