%0 Journal Article %A V. V. Pupyshev %T Energies of weakly bound and near-threshold resonance states of a quantum particle in a two-dimensional plane %J Teoretičeskaâ i matematičeskaâ fizika %D 2014 %P 102-122 %V 179 %N 1 %U http://geodesic.mathdoc.fr/item/TMF_2014_179_1_a6/ %G ru %F TMF_2014_179_1_a6