%0 Journal Article %A V. G. Maz'ya %T The negative spectrum of the $n$-dimensional Schr\"odinger operator %J Doklady Akademii Nauk %D 1962 %P 721-722 %V 144 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1962_144_4_a7/ %G ru %F DAN_1962_144_4_a7