@article{DAN_1967_175_1_a5,
     author = {Yu. I. Manin},
     title = {Rational $G$-surfaces},
     journal = {Doklady Akademii Nauk},
     pages = {28--30},
     publisher = {mathdoc},
     volume = {175},
     number = {1},
     year = {1967},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1967_175_1_a5/}
}