%0 Journal Article %A V. I. Ivanov %T Certain inequalities in various metrics for trigonometric polynomials and their derivatives %J Matematičeskie zametki %D 1975 %P 489-498 %V 18 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZM_1975_18_4_a1/ %G ru %F MZM_1975_18_4_a1