1. Higher derivations and the Zariski-Lipman conjecture;Becker,1976
2. What makes a complex exact?;Buchsbaum;J. Algebra,1973
3. Some structure theorems for finite free resolutions;Buchsbaum;Advances in Math.,1974
4. The Zariski-Lipman conjecture for homogeneous complete intersections;Hochster,1975
5. Free derivation modules on algebraic varieties;Lipman;Amer. J. Math.,1965