%0 Journal Article %A S. G. Kal'nei %T Lower bound of the Lebesgue function of linear means of Fourier--Jacobi series %J Informatics and Automation %D 1984 %P 113-118 %V 170 %I mathdoc %U http://geodesic.mathdoc.fr/item/TRSPY_1984_170_a7/ %G ru %F TRSPY_1984_170_a7