@article{DE_1972_8_2_a6,
     author = {S. A. Minyuk},
     title = {The complete controllability of a linear system with lag},
     journal = {Differencialʹnye uravneni\^a},
     pages = {254--259},
     publisher = {mathdoc},
     volume = {8},
     number = {2},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1972_8_2_a6/}
}