@article{IM2_1971_5_3_a6,
     author = {M. L. Gromov and Ya. M. Eliashberg},
     title = {Removal of singularities of smooth mappings},
     journal = {Izvestiya. Mathematics },
     pages = {615--639},
     publisher = {mathdoc},
     volume = {5},
     number = {3},
     year = {1971},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1971_5_3_a6/}
}