1. Lifting modules and a theorem on finite free resolutions;Buchsbaum,1972
2. D. A. Buchsbaum, and D. Eisenbud, Some structure theorems for finite free resolutions, to appear.
3. A generalized koszul Complex II. Depth and multiplicity;Buchsbaum;Trans. Amer. Math. Soc.,1964
4. Ideals defined by matrices and a certain complex associated to them;Eagon,1962