@article{10_4153_CJM_2007_052_2,
     author = {Buraczewski, Dariusz and Martinez, Teresa and Torrea, Jos\'e L.},
     title = {Calder\'on{\textendash}Zygmund {Operators} {Associated} to {Ultraspherical} {Expansions}},
     journal = {Canadian journal of mathematics},
     pages = {1223--1244},
     year = {2007},
     volume = {59},
     number = {6},
     doi = {10.4153/CJM-2007-052-2},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-2007-052-2/}
}