%0 Journal Article
%A Hertling, J.
%T Multivariate approximation theory with $\Delta$-splines
%J Acta Universitatis Carolinae. Mathematica et Physica
%D 1974
%P 39-41
%V 15
%N 1-2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AUCMP_1974__15_1-2_a9/
%G en
%F AUCMP_1974__15_1-2_a9