@article{DE_1992_28_10_a3,
     author = {N. A. Izobov},
     title = {On the distribution of characteristic and other exponents of two-dimensional linear systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1683--1698},
     publisher = {mathdoc},
     volume = {28},
     number = {10},
     year = {1992},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1992_28_10_a3/}
}