%0 Journal Article %A E. E. Nikitin %T Quasi stationary states in a conical potential well %J Doklady Akademii Nauk %D 1968 %P 319-322 %V 183 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1968_183_2_a18/ %G ru %F DAN_1968_183_2_a18