@article{IIMI_2002_25_2_a21,
     author = {S. N. Popova},
     title = {On global controllability of the complete set of {Lyapunov} invariants for periodic systems},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {79--80},
     publisher = {mathdoc},
     volume = {25},
     number = {2},
     year = {2002},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2002_25_2_a21/}
}