@article{IM2_2004_68_2_a9,
     author = {I. A. Cheltsov},
     title = {Conic bundles with big discriminant loci},
     journal = {Izvestiya. Mathematics },
     pages = {429--434},
     publisher = {mathdoc},
     volume = {68},
     number = {2},
     year = {2004},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_2004_68_2_a9/}
}