@article{milne:2002:ife,
    author = {Milne, S. C.},
     title = {Infinite families of exact sums of squares formulas,
              {J}acobi elliptic functions, continued fractions, and
              {S}chur functions},
   journal = {Ramanujan J.},
  fjournal = {The Ramanujan Journal},
    volume = {6},
      year = {2002},
    number = {1},
     pages = {7–149},
       doi = {10.1023/A:1014865816981},
     zblno = {1125.11315}}