%0 Journal Article %A A. A. Arsen'ev %T On the singularities of the analytic continuation and the resonance properties of a solution of the dispersion problem for the Helmholtz equation %J Doklady Akademii Nauk %D 1971 %P 511-512 %V 197 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1971_197_3_a0/ %G ru %F DAN_1971_197_3_a0