1. Representations of quantum algebras;Andersen;Invent. Math.,1991
2. Noncommutative projective schemes;Artin;Adv. Math.,1994
3. Quantum function algebra at roots of 1;De Concini;Adv. Math.,1994
4. Calculus of Fractions and Homotopy Theory;Gabriel,1967
5. Faithfully flat embeddings for minimal primitive quotients of quantized enveloping algebras;Joseph,1993