%0 Journal Article %A D. E. Pelinovsky %A C. Sulem %T Asymptotic approximations for a new eigenvalue in linear problems without a threshold %J Teoretičeskaâ i matematičeskaâ fizika %D 2000 %P 118-127 %V 122 %N 1 %U http://geodesic.mathdoc.fr/item/TMF_2000_122_1_a9/ %G ru %F TMF_2000_122_1_a9