@article{IIMI_2012_1_a65,
     author = {V. N. Ushakov and A. R. Matviychuk and A. G. Malev},
     title = {Problems of dynamics of systems with phase constraints},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {138--139},
     year = {2012},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2012_1_a65/}
}