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@article{BUMI_1959_3_14_1_a13, author = {Popov, Blagoj S.}, title = {On ultraspherical polynomials.}, journal = {Bollettino della Unione matematica italiana}, pages = {105--108}, publisher = {mathdoc}, volume = {Ser. 3, 14}, number = {1}, year = {1959}, zbl = {0085.06101}, mrnumber = {106300}, language = {en}, url = {http://geodesic.mathdoc.fr/item/BUMI_1959_3_14_1_a13/} }
Popov, Blagoj S. On ultraspherical polynomials.. Bollettino della Unione matematica italiana, Série 3, Tome 14 (1959) no. 1, pp. 105-108. http://geodesic.mathdoc.fr/item/BUMI_1959_3_14_1_a13/
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