%0 Journal Article %A Yu. V. Egorov %T Removable singularities in boundary conditions for solutions of %J Doklady Akademii Nauk %D 1986 %P 27-29 %V 289 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1986_289_1_a4/ %G ru %F DAN_1986_289_1_a4