@article{DAN_1995_345_5_a4,
     author = {N. S. Dairbekov},
     title = {On the stability of classes of quasiregular mappings of several},
     journal = {Doklady Akademii Nauk},
     pages = {596--598},
     year = {1995},
     volume = {345},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1995_345_5_a4/}
}