@article{DE_2005_41_2_a0,
     author = {E. A. Barabanov},
     title = {Singular {Exponents} and {Properness} {Criteria} for {Linear} {Differential} {Systems}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {147--157},
     publisher = {mathdoc},
     volume = {41},
     number = {2},
     year = {2005},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2005_41_2_a0/}
}