1. Cline, E. — Parshall, B. — Scott, L. L., Finite dimensional algebras and highest weight categories, J. Reine Angew. Math. 391 (1988), 85–99.
2. Cline, E. — Parshall, B. — Scott, L. L., Integral and graded quasi—hereditary algebras, I.,J. Algebra 131, No. 1 (1990), 126–160.
3. Curtis, C. W. — Reiner, I., Methods of Representation Theory, Volume II John Wiley & Sons, Interscience Publications, 1987.
4. Carter, R. W., Finite Groups of Lie Type: Conjugacy Classes and Complex Characters, John Wiley & Sons, Interscience Publications, 1985.
5. Curtis, C. W., Representations of Hecke algebras, Astérisque 168 (1988), 13–60.