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@article{TRSPY_1984_170_a7, author = {S. G. Kal'nei}, title = {Lower bound of the {Lebesgue} function of linear means of {Fourier--Jacobi} series}, journal = {Informatics and Automation}, pages = {113--118}, publisher = {mathdoc}, volume = {170}, year = {1984}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/TRSPY_1984_170_a7/} }
S. G. Kal'nei. Lower bound of the Lebesgue function of linear means of Fourier--Jacobi series. Informatics and Automation, Investigations in the theory of differentiable functions of many variables and its applications. Part 10, Tome 170 (1984), pp. 113-118. http://geodesic.mathdoc.fr/item/TRSPY_1984_170_a7/