@article{DE_1988_24_11_a3,
     author = {N. A. Izobov and E. K. Makarov},
     title = {Lyapunov irregular linear systems with a parameter multiplying the derivative},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1870--1880},
     publisher = {mathdoc},
     volume = {24},
     number = {11},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1988_24_11_a3/}
}