@article{DE_2004_40_8_a1,
     author = {N. A. Izobov},
     title = {On the {Simultaneous} {Instability} of {Exponential} {Exponents} of {Linear} {Differential} {Systems}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1023--1032},
     publisher = {mathdoc},
     volume = {40},
     number = {8},
     year = {2004},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2004_40_8_a1/}
}