Quasi-hereditary algebras with a duality. Changchang Xi (1994) Journal für die reine und angewandte Mathematik
Quasitilted algebras have preprojective components Ole Enge (2000) Colloquium Mathematicae We show that a quasitilted algebra has a preprojective component. This is proved by giving an algorithmic criterion for the existence of preprojective components.
Quasi-tilted algebras of canonical type Helmut Lenzing, Andrzej Skowroński (1996) Colloquium Mathematicae