1. MarkBenard,On the Schur indices of the characters of the exceptional Weyl groups, Ph. D. dissertation, Yale University, 1969.
2. N. Bourbaki,Algèbre commutative, chap. 5, 6, Paris, Hermann, 1964.
3. ———,Groupes et algèbres de Lie, chap. 4, 5, 6, Paris, Hermann, 1968.
4. R. W. Carter, Simple groups and simple Lie algebras,J. London Math. Soc.,40 (1965), 193–240.
5. C. W. Curtis, The Steinberg character of a finite group with a (B, N)-pair,J. Algebra,4 (1966), 433–441.