%0 Journal Article
%A V. A. Il'in
%A E. I. Moiseev
%T On the absence of the basis property of a system of root functions of a problem with an oblique derivative
%J Differencialʹnye uravneniâ
%D 1994
%P 128-143
%V 30
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1994_30_1_a14/
%G ru
%F DE_1994_30_1_a14