@article{MM2_1981__35_154797,
     author = {Yum-Tong Siu},
     title = {A {Simple} {Proof} of the {Subjectivity} of the {Period} {Map} of {K3} {Surfaces.}},
     journal = {Manuscripta mathematica},
     pages = {311--322},
     publisher = {mathdoc},
     volume = {35},
     year = {1981},
     zbl = {0497.32019},
     url = {http://geodesic.mathdoc.fr/item/MM2_1981__35_154797/}
}