TY - JOUR AU - A. K. Motovilov AU - A. A. Shkalikov TI - Unconditional bases of subspaces related to non-self-adjoint perturbations of self-adjoint operators JO - Eurasian mathematical journal PY - 2017 SP - 119 EP - 127 VL - 8 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/EMJ_2017_8_1_a8/ LA - en ID - EMJ_2017_8_1_a8 ER -