TY - JOUR AU - L. A. Groza TI - The asymptotic solutions of certain linear differential equations in a Banach space that contain an unbounded operator JO - Differencialʹnye uravneniâ PY - 1970 SP - 289 EP - 297 VL - 6 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1970_6_2_a7/ LA - ru ID - DE_1970_6_2_a7 ER -