References
- Avramov , L.L. , Foxby , H.-B. and Herzog , B. 1994 . Structure of Local Homomorphisms . J. Algebra , 164 : 124 – 145 .
- Avramov , L.L. and Foxby , H.-B. 1992 . Locally Gorenstein homomorphisms . Amer. J. Math , 114 : 1007 – 1047 .
- Buchsbaum , D.A. and Eisenbud , D. 1973 . J. Algebra , 25 : 259 – 268 . What makes a complex exact
- Ding , S. 1992 . Cohen-Macaulay approximation and multiplicity . J. Algebra , 153 : 271 – 288 .
- Ding , S. 1993 . A note on the index of Cohen-Macaulay rings . Comm. in Alg , 21 : 53 – 71 .
- Matsumura , H. 1986 . “ Commutative ring theory ” . Cambridge : Cambridge Univ. Press .
- Sharp , R.Y. 1972 . Finitely generated modules of finite injective dimension over certain Cohen-Macaulay rings, Proc . London. Math. Soc , 25 ( 3 ) : 303 – 328 .
- Yoshino , Y.Y. 1990 . “ Cohen-Macaulay modules over Cohen-Macaulay rings ” . Cambridge Univ. Press . Lecture Notes of London Math. Soc