1. Rings and Categories of Modules;Anderson,1992
2. Elements of the Representation Theory of Associative Algebras, Volume 1: Techniques of Representation Theory;Assem,2007
3. Homological theory of idempotent ideals;Auslander;Trans. Am. Math. Soc.,1992
4. Ortho-symmetric modules, Gorenstein algebras and derived equivalences;Chen;Int. Math. Res. Not.,2016