@article{DE_2005_41_4_a2,
     author = {V. V. Karpuk and A. V. Metel'skii and S. A. Minyuk},
     title = {Identifiability and {Controllability} {Problems} for {Linear} {Second-Order} {Autonomous} {Systems} of {Neutral} {Type}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {455--463},
     publisher = {mathdoc},
     volume = {41},
     number = {4},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2005_41_4_a2/}
}