TY - JOUR AU - F. G. Maksudov AU - O. A. Veliev TI - Spectral analysis of differential operators with periodic matrix coefficients JO - Differencialʹnye uravneniâ PY - 1989 SP - 400 EP - 409 VL - 25 IS - 3 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DE_1989_25_3_a3/ LA - ru ID - DE_1989_25_3_a3 ER -