TY - JOUR AU - G. M. Gubreev TI - On a class of unconditional bases in Hilbert spaces and on the~problem of similarity of dissipative Volterra operators JO - Sbornik. Mathematics PY - 1994 SP - 93 EP - 126 VL - 77 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/SM_1994_77_1_a6/ LA - en ID - SM_1994_77_1_a6 ER -