TY - JOUR AU - R. R. Gadyl'shin TI - On the eigenvalues of a ``dumb-bell with a thin handle'' JO - Izvestiya. Mathematics PY - 2005 SP - 265 EP - 329 VL - 69 IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/IM2_2005_69_2_a1/ LA - en ID - IM2_2005_69_2_a1 ER -