@article{DE_1985_21_5_a1,
     author = {Yu. I. Golechkov},
     title = {Preservation of boundedness properties of solutions under perturbation of a nonlinear $n$-dimensional differential system},
     journal = {Differencialʹnye uravneni\^a},
     pages = {748--752},
     year = {1985},
     volume = {21},
     number = {5},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1985_21_5_a1/}
}