%0 Journal Article %A P. A. Krutitskii %A A. I. Sgibnev %T On the singularities of the gradient of the solution to the Dirichlet--Neumann problem outside a~plane cut %J Matematičeskie zametki %D 2005 %P 364-377 %V 77 %N 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2005_77_3_a4/ %G ru %F MZM_2005_77_3_a4