@article{DAN_1994_339_6_a7,
     author = {V. I. Elkin},
     title = {Narrowing of affine control systems and its applications},
     journal = {Doklady Akademii Nauk},
     pages = {754--756},
     publisher = {mathdoc},
     volume = {339},
     number = {6},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1994_339_6_a7/}
}