@article{SM_1996_187_7_a3,
     author = {V. A. Iskovskikh},
     title = {A rationality criterion for conic bundles},
     journal = {Sbornik. Mathematics},
     pages = {1021--1038},
     publisher = {mathdoc},
     volume = {187},
     number = {7},
     year = {1996},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1996_187_7_a3/}
}