%0 Journal Article
%A Ya. A. Sovin
%T Elliptic boundary value problems for plane regions, with angles and discontinuities occurring on the boundary
%J Doklady Akademii Nauk
%D 1969
%P 995-997
%V 187
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1969_187_5_a8/
%G ru
%F DAN_1969_187_5_a8