%0 Journal Article %A Dragoslav Herceg %T Uniform Fourth Order Difference Scheme for a Singular Perturbation Problem. %J Numerische Mathematik %D 1989 %P 675-694 %V 56 %N 2-3 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1989__56_2-3_133421/ %F NUMA_1989__56_2-3_133421