Voir la notice de l'article provenant de la source Math-Net.Ru
@article{MZM_1983_34_1_a7, author = {S. G. Kal'nei}, title = {Summability of {Jacobi} series by triangular matrices}, journal = {Matemati\v{c}eskie zametki}, pages = {91--103}, publisher = {mathdoc}, volume = {34}, number = {1}, year = {1983}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/MZM_1983_34_1_a7/} }
S. G. Kal'nei. Summability of Jacobi series by triangular matrices. Matematičeskie zametki, Tome 34 (1983) no. 1, pp. 91-103. http://geodesic.mathdoc.fr/item/MZM_1983_34_1_a7/