TY  - JOUR
AU  - I. B. Simonenko
TI  - Some general questions in the theory of the Riemann boundary problem
JO  - Izvestiya. Mathematics 
PY  - 1968
SP  - 1091
EP  - 1099
VL  - 2
IS  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/IM2_1968_2_5_a8/
LA  - en
ID  - IM2_1968_2_5_a8
ER  -