@incollection{koornwinder:2006:lro,
    author = {Koornwinder, Tom H.},
     title = {Lowering and Raising Operators for Some Special Orthogonal
              Polynomials},
 booktitle = {{J}ack, {H}all-{L}ittlewood and {M}acdonald Polynomials},
    series = {Contemp. Math.},
    volume = {417},
     pages = {227–238},
 publisher = {Amer. Math. Soc.},
   address = {Providence, RI},
      year = {2006},
   mrclass = {33C45 (05E35 33C52 33D45)},
  mrnumber = {MR2284130},
     links = {\URL[FullText]{http://arxiv.org/PS_cache/math/pdf/0505/0505378v1.pdf}},
     zblno = {1132.33315}}