1. Algebraic Geometry;Hartshorne,1977
2. Maximal Orders;Reiner,1975
3. Groupes Algébriques et Corps de Classes;Serre,1959
4. Residues of differentials on curves;Tate;Ann. Sci. Ec. Nom. Sup.,1968
5. Places and Valuations in Noncommutative Ring Theory;Van Geel,1981