@article{GDZPPN002314282, title = {Surjectivity of the Period Map of K 3 Surfaces of Degree 2.}, journal = {Mathematische Annalen}, volume = {229}, year = {1977}, pages = {113-146}, zbl = {0333.32020}, url = {http://dml.mathdoc.fr/item/GDZPPN002314282} }
Horikawa, Eiji. Surjectivity of the Period Map of K 3 Surfaces of Degree 2.. Mathematische Annalen, Tome 229 (1977) pp. 113-146. http://gdmltest.u-ga.fr/item/GDZPPN002314282/