@article{milne:1996:nif,
    author = {Milne, Stephen C.},
     title = {New infinite families of exact sums of squares formulas,
              {J}acobi elliptic functions, and {R}amanujan's tau function},
   journal = {Proc. Nat. Acad. Sci. U.S.A.},
  fjournal = {Proceedings of the National Academy of Sciences of the United
              States of America},
    volume = {93},
      year = {1996},
    number = {26},
     pages = {15004–15008},
      issn = {0027-8424},
     coden = {PNASA6},
   mrclass = {11P82 (11F11 33E05)},
  mrnumber = {MR1629061 (99k:11162)},
mrreviewer = {Ken Ono},
     zblno = {1125.11346}}