@article{IIMI_2006_3_a20,
     author = {A. V. Zakharov},
     title = {Influence of delay on the periodic oscillations in conservative systems},
     journal = {Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta},
     pages = {49--50},
     year = {2006},
     number = {3},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IIMI_2006_3_a20/}
}