%0 Journal Article %A D. Kh. Giniyatova %T Generalization of theorems of Sz\'asz and Ruscheweyh on exact bounds for derivatives of analytic functions %J Izvestiâ vysših učebnyh zavedenij. Matematika %D 2009 %P 84-89 %N 12 %I mathdoc %U http://geodesic.mathdoc.fr/item/IVM_2009_12_a10/ %G ru %F IVM_2009_12_a10