%0 Journal Article
%A Yu. I. Cherskii
%T Two theorems on error estimation and some of their applications
%J Doklady Akademii Nauk
%D 1963
%P 271-274
%V 150
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1963_150_2_a13/
%G ru
%F DAN_1963_150_2_a13