@article{DE_2004_40_3_a16,
     author = {S. N. Popova},
     title = {Simultaneous {Local} {Controllability} of the {Spectrum} and the {Lyapunov} {Irregularity} {Coefficient} of {Regular} {Systems}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {425--428},
     publisher = {mathdoc},
     volume = {40},
     number = {3},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2004_40_3_a16/}
}