@article{DAN_1966_170_2_a3,
     author = {I. V. Dolgachev},
     title = {On the {F.~Severi} hypothesis concerning simply connected algebraic surfaces},
     journal = {Doklady Akademii Nauk},
     pages = {249--252},
     publisher = {mathdoc},
     volume = {170},
     number = {2},
     year = {1966},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1966_170_2_a3/}
}