1. Auslander M, Reiten I, Smalø S O. Representation Theory of Artin Algebras. Cambridge Studies in Advanced Mathematics, vol. 36. Cambridge: Cambridge University Press, 1995
2. Bekaert X. Universal enveloping algebras and some applications in physics. Lecture given at the first Modave Summer School in Mathematical Physics, Belgium, June 2005
3. Brown K A, Goodearl K R. Lectures on Algebraic Quantum Groups. Advanced Courses in Mathematics. Basel: Birkhäuser, 2002
4. Brown K A, Gordon I G, Stroppel C H. Cherednik, Hecke and quantum algebras as free Frobenius and Calabi-Yau extensions. J Algebra, 2008, 319: 1007–1034
5. Cartan H, Eilenberg S. Homological Algebra. Princeton: Princeton University Press, 1956