@article{SM_1988_59_2_a4,
     author = {Yu. V. Muranov},
     title = {Obstructions to surgery of double coverings},
     journal = {Sbornik. Mathematics},
     pages = {339--348},
     publisher = {mathdoc},
     volume = {59},
     number = {2},
     year = {1988},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1988_59_2_a4/}
}