@article{DE_1995_31_10_a10,
     author = {E. L. Tonkov},
     title = {Problems on the control of {Lyapunov} exponents},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1682--1686},
     publisher = {mathdoc},
     volume = {31},
     number = {10},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1995_31_10_a10/}
}