@article{DE_1997_33_5_a21,
     author = {B. F. Ivanov},
     title = {A frequency criterion for the boundedness of solutions of a class of linear systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {704--706},
     publisher = {mathdoc},
     volume = {33},
     number = {5},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1997_33_5_a21/}
}