%0 Journal Article %A Alfonso Romero %T An Extension of Calabi's Rigidity theorem to complex submanifolds of indefinite complex space forms. %J Manuscripta mathematica %D 1987 %P 261-276 %V 59 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1987__59_155250/ %F MM2_1987__59_155250