@article{DE_1997_33_2_a17,
     author = {V. N. Laptinskii},
     title = {On solutions, bounded on the semi-axis, of nonlinear differential systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {275--277},
     publisher = {mathdoc},
     volume = {33},
     number = {2},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1997_33_2_a17/}
}