@article{DE_1987_23_3_a2,
     author = {V. V. Basov},
     title = {On the divergence of transformations in an averaging method},
     journal = {Differencialʹnye uravneni\^a},
     pages = {394--401},
     publisher = {mathdoc},
     volume = {23},
     number = {3},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1987_23_3_a2/}
}