@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/}
}