@article{didonato:1987:fsc,
    author = {DiDonato, A. R. and Morris, A. H.},
     title = {Algorithm 654: {F}ortran subroutines for computing the
              incomplete gamma function ratios and their inverses},
   journal = {ACM Trans. Math. Software},
    volume = {13},
    number = {3},
      year = {1987},
     pages = {318–319},
      note = {Single-precision Fortran, maximum accuracy 14D.},
      issn = {0098-3500},
       doi = {10.1145/29380.214348},
     links = {\GAMSmodule{TOMS}{654}{8699}},
     zblno = {0635.65014}}