@article{luke:1968:aei,
    author = {Luke, Yudell L.},
     title = {Approximations for elliptic integrals},
   journal = {Math. Comp.},
    volume = {22},
      year = {1968},
    number = {103},
     pages = {627–634},
   mrclass = {65.25},
  mrnumber = {MR0226825 (37 \#2412)},
     links = {\URL[FullText]{http://links.jstor.org/sici?sici=0025-5718%28196807%2922%3A103%3C627%3AAFEI%3E2.0.CO%3B2-5}},
     zblno = {0165.17701}}