%0 Journal Article
%A M. B. Muratbekov
%T Separability of an operator of mixed type and the completeness of its root vectors
%J Differencialʹnye uravneniâ
%D 1991
%P 2128-2137
%V 27
%N 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1991_27_12_a14/
%G ru
%F DE_1991_27_12_a14