@article{DE_1985_21_5_a21,
     author = {M. I. Gil'},
     title = {Two-sided estimates of solutions of a class of nonlinear differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {891--894},
     publisher = {mathdoc},
     volume = {21},
     number = {5},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1985_21_5_a21/}
}