%0 Journal Article %A A. G. Ramm %T Spectrum of Schr\"odinger's operator used in the optical model of the nucleus %J Doklady Akademii Nauk %D 1966 %P 799-802 %V 169 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1966_169_4_a14/ %G ru %F DAN_1966_169_4_a14