TY - JOUR AU - N. N. Nefëdov AU - A. G. Nikitin TI - Development of the asymptotic method of differential inequalities for step-type solutions of singularly perturbed integro-differential equations JO - Žurnal vyčislitelʹnoj matematiki i matematičeskoj fiziki PY - 2001 SP - 1057 EP - 1066 VL - 41 IS - 7 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ZVMMF_2001_41_7_a4/ LA - ru ID - ZVMMF_2001_41_7_a4 ER -