%0 Journal Article %A N. Lažetić %T On the convergence of spectral expansions corresponding to nonnegative, selfadjoint extensions of the Schr\"odinger operator for functions of class $H_1^\alpha$ %J Doklady Akademii Nauk %D 1983 %P 278-280 %V 269 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_269_2_a3/ %G ru %F DAN_1983_269_2_a3