%0 Journal Article %A E. A. Sevast'yanov %T Some estimates of derivatives of rational functions in integral metrics %J Matematičeskie zametki %D 1973 %P 499-510 %V 13 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1973_13_4_a2/ %G ru %F MZM_1973_13_4_a2