1. A. Borel: Semi-simple Lie groups and symmetric spaces, in preparation.
2. Arithmetic subgroups of algebraic groups;Borel;Bull. Amer. Math. Soc.,1961
3. Arithmetic subgroups of algebraic groups;Borel;Ann. Math., Princeton,1962
4. On semi-simple automorphisms of Lie algebras;Borel;Ann. Math., Princeton,1955
5. Topologie Générale;Bourbaki,1960