%0 Journal Article %A Yum-Tong Siu %T A Simple Proof of the Subjectivity of the Period Map of K3 Surfaces. %J Manuscripta mathematica %D 1981 %P 311-322 %V 35 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM2_1981__35_154797/ %F MM2_1981__35_154797