1. T. Asai, et al., Open problems in algebraic groups, in, Proc. Twelfth International Symposium, Tohoku Univ, Japan, 1983, 14
2. Cells for two Coxeter groups;Bédard;Comm. Algebra,1986
3. Finite Groups of Lie Type: Conjugacy Classes and Complex Characters;Carter,1985
4. Two-sided cells in affine Weyl groups;Chengdong;Northeast. Math. J.,1990
5. Left cells with a-value 4 in the affine Weyl group of typeCn;Chengdong;Bull. London Math. Soc.,1994