%0 Journal Article
%A G. S. Litvinchuk
%A I. M. Spitkovsky
%T Sharp estimates of defect numbers of a generalized Riemann boundary value problem, factorization of hermitian matrix-valued functions and some problems of approximation by meromorphic functions
%J Sbornik. Mathematics
%D 1983
%P 205-224
%V 45
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SM_1983_45_2_a3/
%G en
%F SM_1983_45_2_a3