@article{MZM_2016_99_5_a7,
     author = {I. N. Sergeev},
     title = {Oscillation, {Rotation,} and {Wandering} {Exponents} of {Solutions} of {Differential} {Systems}},
     journal = {Matemati\v{c}eskie zametki},
     pages = {732--751},
     publisher = {mathdoc},
     volume = {99},
     number = {5},
     year = {2016},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/MZM_2016_99_5_a7/}
}