1. Banerjee, S., Can, M. B.: Equivariant K-theory of smooth projective spherical varieties. MathArxiv. arXiv:1603.04926 (2016)
2. Bialynicki-Birula, A.: Some theorems on actions of algebraic groups. Ann. Math. (2) 98, 480–497 (1973)
3. Bourbaki, N.: Lie groups and lie algebras. Chapters 4–6. Elements of Mathematics (Berlin). Springer, Berlin (2002). Translated from the 1968 French original by Andrew Pressley
4. Brion, M.: Equivariant Chow groups for torus actions. Transform. Groups 2(3), 225–267 (1997)
5. De Concini, C., Springer, T. A.: Betti numbers of complete symmetric varieties. In: Geometry Today (Rome, 1984), vol. 60 of Progr. Math., pp 87–107. Birkhäuser, Boston (1985)