@article{10_4153_CJM_1971_033_6,
     author = {Askey, Richard and Gasper, George},
     title = {Linearization of the {Product} of {Jacobi} {Polynomials.} {III}},
     journal = {Canadian journal of mathematics},
     pages = {332--338},
     year = {1971},
     volume = {23},
     number = {2},
     doi = {10.4153/CJM-1971-033-6},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1971-033-6/}
}