Cellular algebras and quasi-hereditary algebras: a comparison. König, Steffen; Xi, Changchang — 1999 Electronic Research Announcements of the American Mathematical Society [electronic only]
Quasi-hereditary algebras which are twisted double incidence algebras of posets. Deng, Bangming; Xi, Changchang — 1995 Beiträge zur Algebra und Geometrie
Quasi-hereditary algebras with a duality. Changchang Xi — 1994 Journal für die reine und angewandte Mathematik
Die Vektorraumkategorie zu einem unzerlegbaren projektiven Modul einer tubularen Algebra. Changchang Xi — 1990 Manuscripta mathematica