%0 Journal Article %A L. D. Kudryavtsev %T Estimates of derivatives on infinite intervals %J Doklady Akademii Nauk %D 1986 %P 1306-1309 %V 287 %N 6 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1986_287_6_a5/ %G ru %F DAN_1986_287_6_a5