1. Elements of the Representation Theory of Associative Algebras 1: Techniques of Representation Theory;Assem,2006
2. Representation Theory of Artin Algebras;Auslander,1995
3. Matrix Norms and Their Applications;Belitskii,1988
4. Enhanced triangulated categories;Bondal;Math. URSS Sb.,1991
5. A tour about existence and uniqueness of dg enhancements and lifts;Canonaco;J. Geom. Phys.,2017