1. Isolated singularities and almost split sequences;Auslander,1986
2. K. Burke, Doctoral Thesis, University of Manchester.
3. Abelian structures I;Fisher,1977
4. Dimensions cohomologiques relieés aux foncteurs lim(i);Gruson,1981
5. Elementary duality of modules;Herzog;Trans. Amer. Math. Soc.,1993