%0 Journal Article %A N. Lažetić %T On the convergence of spectral decompositions corresponding to a nonnegative selfadjoint extension of the Sturm--Liouville operator for functions from the class $H_p^\alpha$ %J Differencialʹnye uravneniâ %D 1981 %P 2149-2159 %V 17 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/DE_1981_17_12_a4/ %G ru %F DE_1981_17_12_a4