%0 Journal Article %A Yu. A. Koshevnik %A B. Ya. Levit %T The boundaries of risk in the problem of estimation of symmetrical distributions %J Zapiski Nauchnykh Seminarov POMI %D 1980 %P 98-114 %V 98 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1980_98_a8/ %G ru %F ZNSL_1980_98_a8