%0 Journal Article %A J.W. DANIEL %T Convergence of the Conjugate Gradient Method with Computationally Convenient Modifications. %J Numerische Mathematik %D 1967 %P 125-131 %V 10 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1967__10_131775/ %F NUMA_1967__10_131775