TY - JOUR AU - A. V. Anokhin AU - A. I. Shindyapin TI - On the beating phenomenon for an impulse differential equation JO - Differencialʹnye uravneniâ PY - 1992 SP - 1107 EP - 1112 VL - 28 IS - 7 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1992_28_7_a0/ LA - ru ID - DE_1992_28_7_a0 ER -