%0 Journal Article %A K. Ritter %T On the Rate of Superlinear Convergence of a Class of Variable Metric Methods. %J Numerische Mathematik %D 1980 %P 293-314 %V 35 %I mathdoc %U http://geodesic.mathdoc.fr/item/NUMA_1980__35_186292/ %F NUMA_1980__35_186292