@article{valent:1986:ait,
    author = {Valent, G.},
     title = {An integral transform involving {H}eun functions and a related
              eigenvalue problem},
   journal = {SIAM J. Math. Anal.},
  fjournal = {SIAM Journal on Mathematical Analysis},
    volume = {17},
      year = {1986},
    number = {3},
     pages = {688–703},
      issn = {0036-1410},
     coden = {SJMAAH},
   mrclass = {44A20 (33A70 34B30)},
  mrnumber = {MR0838248 (87i:44009)},
mrreviewer = {William L. Perry},
       doi = {10.1137/0517049},
     zblno = {0604.44004}}