Voir la notice de l'article provenant de la source Biblioteca Digitale Italiana di Matematica
@article{BUMI_1961_3_16_3_a0, author = {Singhai, B. C.}, title = {On the {Ces\`aro} summability of the ultraspherical series.}, journal = {Bollettino della Unione matematica italiana}, pages = {207--217}, publisher = {mathdoc}, volume = {Ser. 3, 16}, number = {3}, year = {1961}, zbl = {0104.29001}, mrnumber = {132945}, language = {en}, url = {http://geodesic.mathdoc.fr/item/BUMI_1961_3_16_3_a0/} }
Singhai, B. C. On the Cesàro summability of the ultraspherical series.. Bollettino della Unione matematica italiana, Série 3, Tome 16 (1961) no. 3, pp. 207-217. http://geodesic.mathdoc.fr/item/BUMI_1961_3_16_3_a0/