@article{ZVMMF_1974_14_1_a24,
     author = {B. V. Aleshin},
     title = {Application of the averaging method to a system of differential equations},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {237--240},
     publisher = {mathdoc},
     volume = {14},
     number = {1},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1974_14_1_a24/}
}