%0 Journal Article %A A. S. Makin %T Summation by the Abel--Poisson method of spectral expansions corresponding to elliptic and ordinary differential operators %J Doklady Akademii Nauk %D 1983 %P 1055-1058 %V 272 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1983_272_5_a6/ %G ru %F DAN_1983_272_5_a6