The Class Number of Hereditary Orders in Non-Eichler Algebras over Global Fuction Fields. Marleen Denert; Jan Van Geel — 1988 Mathematische Annalen
Cancellation property for orders in non Eichler division algebras over global functionfields. Marleen Denert; Jan van Geel — 1986 Journal für die reine und angewandte Mathematik
Indices of double coverings of genus 1 over p -adic fields Jan Van Geel; Vyacheslav Yanchevskii — 1999 Annales de la Faculté des sciences de Toulouse : Mathématiques
The level of cyclic division algebras. J.-P. Tignol; M. Denert; Jan Van Geel — 1990 Mathematische Zeitschrift