TY - JOUR AU - R. R. Gadyl'shin TI - Existence and asymptotics of poles with small imaginary part for the Helmholtz resonator JO - Trudy Matematicheskogo Instituta imeni V.A. Steklova PY - 1997 SP - 1 EP - 72 VL - 52 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/RM_1997_52_1_a0/ LA - en ID - RM_1997_52_1_a0 ER -