Exact Borel subalgebras of quasi-heriditary algebras, I (with an appendix by Leonard Scott). Steffen König — 1995 Mathematische Zeitschrift
Global Dimension two orders are quasi-hereditary. Alfred Wiedemann; Steffen König — 1990 Manuscripta mathematica
Cellular algebras and quasi-hereditary algebras: a comparison. König, Steffen; Xi, Changchang — 1999 Electronic Research Announcements of the American Mathematical Society [electronic only]