%0 Journal Article %A Masahiro Ohno %T An affirmative answer to a question of Ciliberto. %J Manuscripta mathematica %D 1993 %P 437-444 %V 81 %N 3-4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1993__81_3-4_155910/ %F MM2_1993__81_3-4_155910