TY - JOUR AU - S. A. Stepin TI - Non-self-conjugate singular perturbations: a~model of transition from a~discrete to a~continuous spectrum JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1995 SP - 1311 EP - 1313 VL - 50 IS - 6 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1995_50_6_a30/ LA - en ID - RM_1995_50_6_a30 ER -