@article{BUMI_1959_3_14_1_105_0, author = {Blagoj S. Popov}, title = {On ultraspherical polynomials.}, journal = {Bollettino dell'Unione Matematica Italiana}, volume = {14}, year = {1959}, pages = {105-108}, zbl = {0085.06101}, mrnumber = {106300}, language = {en}, url = {http://dml.mathdoc.fr/item/BUMI_1959_3_14_1_105_0} }
Popov, Blagoj S. On ultraspherical polynomials.. Bollettino dell'Unione Matematica Italiana, Tome 14 (1959) pp. 105-108. http://gdmltest.u-ga.fr/item/BUMI_1959_3_14_1_105_0/
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