%0 Journal Article %A Lukšan, Ladislav %T Computational experience with improved variable metric methods for unconstrained minimization %J Kybernetika %D 1990 %P 415-431 %V 26 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/KYB_1990__26_5_a4/ %G en %F KYB_1990__26_5_a4