TY - JOUR AU - I. I. Ibragimov AU - A. D. Gadzhiev AU - V. M. Shakhverdiev TI - On conditions for monotonicity of the sequence of derivatives of Gel’fond--Bernstein polynomials JO - Doklady Akademii Nauk PY - 1971 SP - 762 EP - 765 VL - 199 IS - 4 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/DAN_1971_199_4_a5/ LA - ru ID - DAN_1971_199_4_a5 ER -