%0 Journal Article %A V. N. Dubinin %T An Extremal Problem for the Derivative of a Rational Function %J Matematičeskie zametki %D 2016 %P 732-738 %V 100 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2016_100_5_a7/ %G ru %F MZM_2016_100_5_a7