%0 Journal Article
%A A. I. Vagabov
%T $n$-fold summability of series in principal functions of pencils

%J Doklady Akademii Nauk
%D 1988
%P 534-538
%V 299
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1988_299_3_a3/
%G ru
%F DAN_1988_299_3_a3