TY - JOUR AU - I. T. Kiguradze AU - I. P. Stavroulakis TI - On the existence of proper oscillating solutions of advanced differential equations JO - Differencialʹnye uravneniâ PY - 1998 SP - 751 EP - 757 VL - 34 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1998_34_6_a4/ LA - ru ID - DE_1998_34_6_a4 ER -