TY - JOUR AU - I. V. Kamenev TI - Oscillation criteria, connected with averaging, for the solutions of second order ordinary differential equations JO - Differencialʹnye uravneniâ PY - 1974 SP - 246 EP - 252 VL - 10 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1974_10_2_a7/ LA - ru ID - DE_1974_10_2_a7 ER -