@article{10_4153_CJM_1972_008_1,
     author = {Dunkl, Charles F.},
     title = {Singular {Integrals} on {Ultraspherical} {Series}},
     journal = {Canadian journal of mathematics},
     pages = {60--71},
     year = {1972},
     volume = {24},
     number = {1},
     doi = {10.4153/CJM-1972-008-1},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1972-008-1/}
}