@article{DAN_1979_248_3_a8,
     author = {B. Sh. Shklyar},
     title = {On the observability of linear stationary systems with concentrated delays},
     journal = {Doklady Akademii Nauk},
     pages = {549--552},
     publisher = {mathdoc},
     volume = {248},
     number = {3},
     year = {1979},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1979_248_3_a8/}
}