Harenberg E. H. Kars, Early-Medieval Dorestad, an Archaeo-Petrological Study. BMGN-LCHR [Internet]. 1986 Jan. 1 [cited 2024 May 9];101(4):630-1. Available from: https://bmgn-lchr.nl/article/view/URN%3ANBN%3ANL%3AUI%3A10-1-103018