@article{IIMI_2006_37_3_a19,
     author = {V. A. Zaitsev and E. K. Makarov and S. N. Popova and E. L. Tonkov},
     title = {Problems of control over {Lyapunov} invariants},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {43--48},
     publisher = {mathdoc},
     volume = {37},
     number = {3},
     year = {2006},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2006_37_3_a19/}
}