@article{IM2_1971_5_5_a5,
     author = {M. Kh. Gizatullin},
     title = {Quasihomogeneous affine surfaces},
     journal = {Izvestiya. Mathematics},
     pages = {1057--1081},
     year = {1971},
     volume = {5},
     number = {5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1971_5_5_a5/}
}