%0 Journal Article
%A A. R. Alimov
%A K. S. Ryutin
%A I. G. Tsar'kov
%T Existence, uniqueness, and stability of best and near-best approximations
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 2023
%P 399-442
%V 78
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/RM_2023_78_3_a0/
%G en
%F RM_2023_78_3_a0