TY - JOUR AU - A. I. Zhivkov TI - Isospectral classes of matrix-valued finite-gap operators with symmetries JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1989 SP - 269 EP - 270 VL - 44 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1989_44_1_a30/ LA - en ID - RM_1989_44_1_a30 ER -