TY - JOUR AU - V. I. Fomin TI - A singular differential equation with a small parameter in the case of a variable bounded operator coefficient JO - Differencialʹnye uravneniâ PY - 1989 SP - 1350 EP - 1354 VL - 25 IS - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1989_25_8_a8/ LA - ru ID - DE_1989_25_8_a8 ER -