%0 Journal Article
%A I. B. Simonenko
%T Some general questions in the theory of the Riemann boundary problem
%J Izvestiya. Mathematics 
%D 1968
%P 1091-1099
%V 2
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IM2_1968_2_5_a8/
%G en
%F IM2_1968_2_5_a8