1.
Vries B de. H. Gras, Geschiedenis van Assen. BMGN-LCHR [Internet]. 2002 Jan. 1 [cited 2024 Dec. 22];117(1):78-80. Available from: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-106444