@article{DE_1999_35_10_a20,
     author = {T. I. Smirnov},
     title = {On {Lyapunov} exponents of linear extensions of an irrational winding on a torus},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1435--1436},
     publisher = {mathdoc},
     volume = {35},
     number = {10},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1999_35_10_a20/}
}