%0 Journal Article %A Juan Elias %T A Sharp Bound for the Minimal Number of Generators of Perfect Height Two Ideals. %J Manuscripta mathematica %D 1986 %P 93-100 %V 55 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1986__55_155129/ %F MM2_1986__55_155129