@article{DAN_1996_347_2_a0,
     author = {M. I. Kamenskii},
     title = {On a modification of the averaging principle for degenerate},
     journal = {Doklady Akademii Nauk},
     pages = {151--153},
     publisher = {mathdoc},
     volume = {347},
     number = {2},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1996_347_2_a0/}
}