@article{DE_1965_1_5_a2,
     author = {A. V. Kostin},
     title = {On the question of the existence of bounded particular solutions and of particular solutions tending to zero as $t\rightarrow +\infty $ for a system of ordinary differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {585--604},
     publisher = {mathdoc},
     volume = {1},
     number = {5},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1965_1_5_a2/}
}