TY - JOUR AU - K. A. Breus TI - On the reducibility of a canonical system of differential equations with periodical coefficients JO - Doklady Akademii Nauk PY - 1958 SP - 21 EP - 24 VL - 123 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1958_123_1_a3/ LA - ru ID - DAN_1958_123_1_a3 ER -