%0 Journal Article %A F. Stenger %T Optimal Convergence of Minimum Norm Approximations in Hp. %J Numerische Mathematik %D 1977 %P 345-362 %V 29 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1977__29_132525/ %F NUMA_1977__29_132525