%0 Journal Article %A Florencio Utreras %T Natural Spline Functions, Their Associated Eigenvalue Problem. %J Numerische Mathematik %D 1983 %P 107-118 %V 42 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1983__42_132864/ %F NUMA_1983__42_132864