@article{DE_1987_23_3_a3,
     author = {Z. S. Batalova and N. V. Buhalova},
     title = {On stationary and periodic solutions of a nonlinear nonautonomous differential equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {401--409},
     publisher = {mathdoc},
     volume = {23},
     number = {3},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1987_23_3_a3/}
}