%0 Journal Article %A P. A. Krutitskii %T On oblique derivative problem for a~plane with sections along the straight line and relating problems %J Matematičeskoe modelirovanie %D 1990 %P 143-154 %V 2 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MM_1990_2_4_a11/ %G ru %F MM_1990_2_4_a11