@article{IM2_1989_32_1_a12,
     author = {A. V. Pukhlikov},
     title = {Birational automorphisms of a~double space and double quadric},
     journal = {Izvestiya. Mathematics },
     pages = {233--243},
     publisher = {mathdoc},
     volume = {32},
     number = {1},
     year = {1989},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1989_32_1_a12/}
}