@article{SM_1978_34_3_a4,
     author = {V. M. Marchenko},
     title = {On the theory of canonical forms for control systems with delay},
     journal = {Sbornik. Mathematics},
     pages = {357--366},
     year = {1978},
     volume = {34},
     number = {3},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1978_34_3_a4/}
}