@article{IM2_1972_6_4_a2,
     author = {V. V. Ishkhanov},
     title = {The imbedding problem with restricted ramification},
     journal = {Izvestiya. Mathematics },
     pages = {735--741},
     publisher = {mathdoc},
     volume = {6},
     number = {4},
     year = {1972},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/IM2_1972_6_4_a2/}
}