TY - JOUR AU - A. Ya. Kovalenko TI - The highest exponent and the critical exponent of certain differential equations in a Banach space JO - Differencialʹnye uravneniâ PY - 1967 SP - 1259 EP - 1265 VL - 3 IS - 8 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1967_3_8_a4/ LA - ru ID - DE_1967_3_8_a4 ER -