TY - JOUR AU - S. A. Stepin TI - On Finiteness Conditions for the Point Spectrum in the Nonself-Adjoint Friedrichs Model JO - Funkcionalʹnyj analiz i ego priloženiâ PY - 1997 SP - 83 EP - 86 VL - 31 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/FAA_1997_31_4_a11/ LA - ru ID - FAA_1997_31_4_a11 ER -