%0 Journal Article %A V. S. Serov %T Absolute convergence of series in eigenfunctions of the Laplace operator in the class~$C^{N/2}$ %J Matematičeskie zametki %D 1983 %P 431-442 %V 34 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1983_34_3_a13/ %G ru %F MZM_1983_34_3_a13