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@article{CM_1994__91_3_305_0, author = {Valla, G.}, title = {On the {Betti} numbers of perfect ideals}, journal = {Compositio Mathematica}, pages = {305--319}, publisher = {Kluwer Academic Publishers}, volume = {91}, number = {3}, year = {1994}, mrnumber = {1273653}, zbl = {0815.14033}, language = {en}, url = {http://geodesic.mathdoc.fr/item/CM_1994__91_3_305_0/} }
Valla, G. On the Betti numbers of perfect ideals. Compositio Mathematica, Tome 91 (1994) no. 3, pp. 305-319. http://geodesic.mathdoc.fr/item/CM_1994__91_3_305_0/