@article{TM_2003_240_a2,
     author = {V. A. Iskovskikh},
     title = {On {Shokurov's} {Work} {Prelimiting} {Flips}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {21--42},
     year = {2003},
     volume = {240},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_2003_240_a2/}
}