@article{DAN_1987_293_2_a2,
     author = {V. M. Veliov and A. L. Donchev},
     title = {Continuity of a family of trajectories of linear control systems},
     journal = {Doklady Akademii Nauk},
     pages = {274--278},
     publisher = {mathdoc},
     volume = {293},
     number = {2},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1987_293_2_a2/}
}