@article{GDZPPN002334151, title = {Nonflat deformations of modules and isolated singularities.}, journal = {Mathematische Annalen}, volume = {287}, year = {1990}, pages = {413-428}, zbl = {0707.14002}, url = {http://dml.mathdoc.fr/item/GDZPPN002334151} }
Essen, Hartwig von. Nonflat deformations of modules and isolated singularities.. Mathematische Annalen, Tome 287 (1990) pp. 413-428. http://gdmltest.u-ga.fr/item/GDZPPN002334151/