%0 Journal Article %A J.A., Donagi, R. Carlson %T Hypersurface variations are maximal, I. %J Inventiones mathematicae %D 1987 %P 371-374 %V 89 %I mathdoc %U http://geodesic.mathdoc.fr/item/IM_1987__89_143486/ %F IM_1987__89_143486