%0 Journal Article %A V. V. Filippov %T Normally situated subspaces %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1983 %P 239-251 %V 154 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1983_154_a25/ %G ru %F TM_1983_154_a25