%0 Journal Article %A A. A. Tolstonogov %T Theorem on continuous extension of a multivalued function and its applications %J Matematičeskie zametki %D 1987 %P 581-593 %V 42 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1987_42_4_a10/ %G ru %F MZM_1987_42_4_a10