@article{IM2_1975_9_2_a3,
     author = {V. V. Nikulin},
     title = {On {Kummer} surfaces},
     journal = {Izvestiya. Mathematics},
     pages = {261--275},
     year = {1975},
     volume = {9},
     number = {2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1975_9_2_a3/}
}