TY - JOUR AU - A. V. Zakharov TI - Influence of delay on the periodic oscillations in conservative systems JO - Izvestiya Instituta Matematiki i Informatiki Udmurtskogo Gosudarstvennogo Universiteta PY - 2006 SP - 49 EP - 50 IS - 3 UR - http://geodesic.mathdoc.fr/item/IIMI_2006_3_a20/ LA - ru ID - IIMI_2006_3_a20 ER -