@article{RM_1978_33_1_a17,
     author = {A. N. Rudakov and I. R. Shafarevich},
     title = {Quasi-elliptic surfaces of type~$K3$},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {215--216},
     publisher = {mathdoc},
     volume = {33},
     number = {1},
     year = {1978},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/RM_1978_33_1_a17/}
}