%0 Journal Article
%A G. M. Kesel'man
%T On the unconditional convergence of eigenfunction expansions of certain differential operators
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1964
%P 82-93
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1964_2_a10/
%G ru
%F IVM_1964_2_a10