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@article{BUMI_1956_3_11_1_a6, author = {Danese, Arthur E.}, title = {On a theorem of {Merli} concerning ultraspherical polynomials.}, journal = {Bollettino della Unione matematica italiana}, pages = {38--39}, publisher = {mathdoc}, volume = {Ser. 3, 11}, number = {1}, year = {1956}, zbl = {0070.06703}, mrnumber = {77718}, language = {en}, url = {http://geodesic.mathdoc.fr/item/BUMI_1956_3_11_1_a6/} }
Danese, Arthur E. On a theorem of Merli concerning ultraspherical polynomials.. Bollettino della Unione matematica italiana, Série 3, Tome 11 (1956) no. 1, pp. 38-39. http://geodesic.mathdoc.fr/item/BUMI_1956_3_11_1_a6/