@article{DE_1984_20_9_a7,
     author = {S. A. Minyuk},
     title = {Observability of linear time-independent systems with delay},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1534--1539},
     publisher = {mathdoc},
     volume = {20},
     number = {9},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1984_20_9_a7/}
}