%0 Journal Article %A V. I. Danchenko %T Existence Criterion for Estimates of Derivatives of Rational Functions %J Matematičeskie zametki %D 2005 %P 493-502 %V 78 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_2005_78_4_a1/ %G ru %F MZM_2005_78_4_a1