%0 Journal Article %A Yu. E. Egorov %T Removable singularities in boundary conditions for differential equations %J Vestnik Moskovskogo universiteta. Matematika, mehanika %D 1985 %P 30-36 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/VMUMM_1985_6_a5/ %G ru %F VMUMM_1985_6_a5