@article{10_4153_CJM_1968_014_4,
     author = {Viswanathan, B.},
     title = {Generating {Functions} for {Ultraspherical} {Functions}},
     journal = {Canadian journal of mathematics},
     pages = {120--134},
     year = {1968},
     volume = {20},
     number = {1},
     doi = {10.4153/CJM-1968-014-4},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1968-014-4/}
}