@article{MZM_1988_44_2_a8,
     author = {A. F. Filippov},
     title = {Determination of characteristic exponents of linear systems with quasiperiodic coefficients},
     journal = {Matemati\v{c}eskie zametki},
     pages = {231--243},
     publisher = {mathdoc},
     volume = {44},
     number = {2},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_1988_44_2_a8/}
}