%0 Journal Article %A A. G. Chentsov %T Asymptotically attainable elements: Generalized constructions and the realization in the class of approximate solutions %J Trudy Matematicheskogo Instituta imeni V.A. Steklova %D 1995 %P 443-456 %V 211 %I mathdoc %U http://geodesic.mathdoc.fr/item/TM_1995_211_a30/ %G ru %F TM_1995_211_a30