%0 Journal Article
%A I. A. Ibragimov
%A V. Kherdle
%A A. B. Tsybakov
%T Efficient estimation of an averaged derivative
%J Doklady Akademii Nauk
%D 1993
%P 550-552
%V 331
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1993_331_5_a5/
%G ru
%F DAN_1993_331_5_a5