1. Simple algebras and cohomology groups of arbitrary fields;Amitsur;TAMS,1959
2. Grothendieck topologies;Artin;Harvard U. Notes,1962
3. Brauer group of a commutative ring;Auslander;TAMS,1960
4. Algebraic K-theory;Bass,1968
5. Galois theory and cohomology of commutative rings;Chase;Memoirs A.M.S.,1965