1. F. ARDILA AND S. BiLLEY, Flag arrangements and triangulations of products of simplices, to appear in Advances in Math.
2. S.D. COHEN, The distribution of Galois groups and Hubert’s irreducibility theorem, Proc. London Math. Soc. (3) 43 (1981), no. 2, 227–250.
3. I. COSKUN, A Littlewood-Richarson rule for the two-step flag varieties, preprint, 2004.
4. I. COSKUN AND R. VAKIL, Geometric positivity in the co-homology of homogeneous spaces and generalized Schubert calculus, arXiv:math.AG/0610538.
5. H.S.M. COXETER AND S.L. GREITZER, Geometry Revisited, Math. Ass. of Amer., New Haven, 1967.