%0 Journal Article
%A C.K. Chui
%A P.W. Smith
%A J.D. Ward
%T Approximation with Restricted Spectra.
%J Mathematische Zeitschrift
%D 1975
%P 289-297
%V 144
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1975__144_172262/
%F MZ_1975__144_172262