%0 Journal Article
%A V. A. Il'in
%A E. I. Moiseev
%T On the systems consisting of subsets of root function of two distinct boundary value problems
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 1992
%P 219-230
%V 201
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_1992_201_a10/
%G ru
%F TM_1992_201_a10