@article{IM2_1998_62_1_a3,
     author = {A. V. Pukhlikov},
     title = {Birational automorphisms of algebraic threefolds with a~pencil of {Del} {Pezzo} surfaces},
     journal = {Izvestiya. Mathematics },
     pages = {115--155},
     publisher = {mathdoc},
     volume = {62},
     number = {1},
     year = {1998},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1998_62_1_a3/}
}