%0 Journal Article %A Martínez, J. M. %T On the order of convergence of Broyden-Gay-Schnabel's method %J Commentationes Mathematicae Universitatis Carolinae %D 1978 %P 107-118 %V 19 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMUC_1978__19_1_a10/ %G en %F CMUC_1978__19_1_a10