%0 Journal Article %A I. I. Ibragimov %A A. D. Gadzhiev %A V. M. Shakhverdiev %T On conditions for monotonicity of the sequence of derivatives of Gel’fond--Bernstein polynomials %J Doklady Akademii Nauk %D 1971 %P 762-765 %V 199 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1971_199_4_a5/ %G ru %F DAN_1971_199_4_a5