@article{SM_1990_65_2_a5,
     author = {V. M. Millionshchikov},
     title = {Lyapunov exponents as functions of a parameter},
     journal = {Sbornik. Mathematics},
     pages = {369--384},
     publisher = {mathdoc},
     volume = {65},
     number = {2},
     year = {1990},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1990_65_2_a5/}
}