%0 Journal Article
%A Philip M. Anselone
%A Joel Davis
%T Perturbations of Best Approximation Problems.
%J Numerische Mathematik
%D 1973
%P 63-69
%V 21
%I mathdoc
%U http://geodesic.mathdoc.fr/item/NUMA_1973__21_132213/
%F NUMA_1973__21_132213