The Auslander-Reiten Graph of Integral Blocks with Cyclic Defect Two and Their Integral Representations. Alfred Wiedemann — 1982 Mathematische Zeitschrift
Auslander-Reiten Quivers of local orders of finite lattice type. Alfred Wiedemann — 1987 Manuscripta mathematica
Global Dimension two orders are quasi-hereditary. Alfred Wiedemann; Steffen König — 1990 Manuscripta mathematica