%0 Journal Article %A P. A. Krutitskii %T On the Riemann--Hilbert problem and the oblique derivative problem at the plane with sections along the circumference %J Matematičeskoe modelirovanie %D 1990 %P 114-123 %V 2 %N 9 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM_1990_2_9_a9/ %G ru %F MM_1990_2_9_a9