@article{DAN_1982_266_2_a10,
     author = {M. M. Khapaev},
     title = {On linear systems of ordinary differential equations},
     journal = {Doklady Akademii Nauk},
     pages = {299--301},
     publisher = {mathdoc},
     volume = {266},
     number = {2},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1982_266_2_a10/}
}