@article{DE_1988_24_6_a22,
     author = {S. A. Minyuk},
     title = {Complete null-controllability and observability of linear systems with retarded argument},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1058--1061},
     publisher = {mathdoc},
     volume = {24},
     number = {6},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1988_24_6_a22/}
}