@article{DE_1995_31_2_a5,
     author = {S. N. Popova and E. L. Tonkov},
     title = {Control of {Lyapunov} exponents of consistent systems. {III}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {228--238},
     publisher = {mathdoc},
     volume = {31},
     number = {2},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1995_31_2_a5/}
}