%0 Journal Article
%A V. A. Yudin
%T Diophantine approximations in $L_2$ extremal problems
%J Doklady Akademii Nauk
%D 1980
%P 54-57
%V 251
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1980_251_1_a14/
%G ru
%F DAN_1980_251_1_a14