1. Artin, M.: Grothendieck Topologies. Springer 1962
2. Artin, M., Verdier, J.L.: Seminar on Etale Cohomology of number fields. AMS Summer Institute on Algebraic geometry 1964
3. Bayer, P., Neukirch, J.: On values of zeta functions and ?-adic Euler characteristics. Inventiones math.50, 35?64 (1978)
4. Bass, H.: AlgebraicK-theory. New York: Benjamin 1968
5. Lecture Notes in Mathematics;H. Bass,1973