%0 Journal Article %A R. R. Gadyl'shin %T On the eigenvalues of a “dumb-bell with a thin handle” %J Izvestiya. Mathematics %D 2005 %P 265-329 %V 69 %N 2 %U http://geodesic.mathdoc.fr/item/IM2_2005_69_2_a1/ %G en %F IM2_2005_69_2_a1