%0 Journal Article
%A È. R. Tsekanovskii
%T The characteristic function and sectorial boundary value problems
%J Matematičeskie trudy
%D 1987
%P 180-194
%V 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MT_1987_7_a10/
%G ru
%F MT_1987_7_a10