@article{10_4153_CJM_1970_020_2,
     author = {Gasper, George},
     title = {Linearization of the {Product} of {Jacobi} {Polynomials.} {I}},
     journal = {Canadian journal of mathematics},
     pages = {171--175},
     year = {1970},
     volume = {22},
     number = {1},
     doi = {10.4153/CJM-1970-020-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1970-020-2/}
}