%0 Journal Article %A G. Opfer %T Solving Complex Approximation Problems by Semiinfmite - Finite Optimization Techniques : A Study on Convergence. %J Numerische Mathematik %D 1982 %P 411-420 %V 39 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1982__39_132806/ %F NUMA_1982__39_132806