%0 Journal Article %A R.S. VARGA %A G.H. GOLUB %T Chebyshev semi-iterative methods, successive overrelaxation iterative methods, and second order Richardson iterative methods. Part I. %J Numerische Mathematik %D 1961 %P 147-156 %V 3 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1961__3_131485/ %F NUMA_1961__3_131485