%0 Journal Article
%A V. H. Hristov
%A K. G. Ivanov
%T Realization of K-Functionals on Subsets and Constrained Approximation
%J Mathematica balkanica
%D 1990
%P 236
%V 4
%N 3-4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MABA_1990_4_3-4_a2/
%F MABA_1990_4_3-4_a2