@article{slepian:1964:psw,
    author = {Slepian, David},
     title = {Prolate spheroidal wave functions, {F}ourier analysis and
              uncertainity. {IV}. {E}xtensions to many dimensions;
              generalized prolate spheroidal functions},
   journal = {Bell System Tech. J.},
  fjournal = {The Bell System Technical Journal},
    volume = {43},
      year = {1964},
     pages = {3009–3057},
      issn = {0005-8580},
   mrclass = {33.28},
  mrnumber = {MR0181766 (31 \#5993)},
mrreviewer = {J. Meixner},
     zblno = {0184.08604}}