%0 Journal Article %A I. Ya. Zabotin %T Choosing descent directions in unconstrained minimization problems %J Issledovaniya po Prikladnoi Matematike i Informatike %D 1981 %P 37-42 %I mathdoc %U http://geodesic.mathdoc.fr/item/KUIPM_1981_a4/ %G ru %F KUIPM_1981_a4