1. Stable module theory;Auslander;Mem. Amer. Math. Soc.,1969
2. Homological Algebra;Cartan,1956
3. Weak linking and multiplicities;Dutta;J. Pure Appl. Algebra,1983
4. M. Hochster, “Conference on Commutative Algebra,” pp. 120–152, Springer-Verlag, No. 311, Berlin/Heidelberg/New York.
5. Rings der characteristik p und Frobeniusfunktoren;Herzog;Math. Z.,1974