@article{luke:1977:ara,
    author = {Luke, Yudell L.},
     title = {Algorithms for rational approximations for a confluent
              hypergeometric function},
   journal = {Utilitas Math.},
    volume = {11},
      year = {1977},
     pages = {123–151},
   mrclass = {65D20},
  mrnumber = {MR0436548 (55 \#9491)},
mrreviewer = {F. Gotze},
     zblno = {0351.33001}}