@article{nardin:1992:nch,
    author = {Nardin, Mark and Perger, W. F. and Bhalla, Atul},
     title = {Numerical evaluation of the confluent hypergeometric function
              for complex arguments of large magnitudes},
   journal = {J. Comput. Appl. Math.},
  fjournal = {Journal of Computational and Applied Mathematics},
    volume = {39},
      year = {1992},
    number = {2},
     pages = {193–200},
      issn = {0377-0427},
     coden = {JCAMDI},
   mrclass = {65D20},
  mrnumber = {MR1158201},
      note = {Extended-precision Fortran evaluator, minimum accuracy 9S,
              maximum accuracy 13S.},
       doi = {10.1016/0377-0427(92)90129-L},
     zblno = {0777.65007}}