@article{spellucci:1975:eci,
    author = {Spellucci, P. and Pulay, P.},
     title = {Effective calculation of the incomplete gamma function
              for parameter values $\alpha=(2n+1)/2$, $n=0,\ldots ,5$},
   journal = {Angew. Informatik},
    volume = {17},
      year = {1975},
     pages = {30–32},
      note = {Includes Fortran code.},
     zblno = {0297.65017}}