1. Class field theory;Artin,1961
2. Homological dimension in noetherian rings;Auslander;Trans. Am. Math. Soc.,1957
3. Homological dimension in noetherian rings;Auslander;Trans. Am. Math. Soc.,1958
4. Galois groups of extensions of number fields with given ramification;Brumer;Michigan Math. J.,1966
5. Homological Algebra;Cartan;Princeton Mathematics Series,1956