%0 Journal Article %A Yu. A. Koshevnik %T On asymptotic properties of nonparametric estimators of characteristic function %J Zapiski Nauchnykh Seminarov POMI %D 1984 %P 97-112 %V 136 %I mathdoc %U http://geodesic.mathdoc.fr/item/ZNSL_1984_136_a6/ %G ru %F ZNSL_1984_136_a6