TY  - JOUR
AU  - G. S. Litvinchuk
AU  - I. M. Spitkovsky
TI  - 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
JO  - Sbornik. Mathematics
PY  - 1983
SP  - 205
EP  - 224
VL  - 45
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SM_1983_45_2_a3/
LA  - en
ID  - SM_1983_45_2_a3
ER  -