@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/}
}