Early medieval tesserae in northwestern Europe - Van Wersch, Line; Van Wersch, Line; Verslype, Laurent; Verslype, Laurent; Strivay, David; Strivay, David; Theuws, Frans, 1953-; Theuws, Frans, 1953-; Balcon-Berry, S.; Bertholon, B.; Bonnin, M.; Degryse, P.; et al. (Merovingian archaeology in the low countries ;, 2019)