TY - JOUR AU - G. I. Aslanov TI - Differential equations with operator coefficients in Hilbert spaces JO - Matematičeskie zametki PY - 1993 SP - 153 EP - 155 VL - 53 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/MZM_1993_53_3_a16/ LA - ru ID - MZM_1993_53_3_a16 ER -