@article{DE_2006_42_5_a2,
     author = {A. V. Lipnitskii},
     title = {On the higher characteristic exponent of a linear differential system linearly depending on a parameter},
     journal = {Differencialʹnye uravneni\^a},
     pages = {590--598},
     publisher = {mathdoc},
     volume = {42},
     number = {5},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2006_42_5_a2/}
}