@article{TIMB_2006_14_2_a6,
     author = {T. B. Kopeikina},
     title = {On controllability criteria for linear time-invariant singularly perturbed systems},
     journal = {Trudy Instituta matematiki},
     pages = {54--65},
     publisher = {mathdoc},
     volume = {14},
     number = {2},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TIMB_2006_14_2_a6/}
}