@article{brent:1978:fmp,
    author = {Brent, R. P.},
     title = {A {F}ortran multiple-precision arithmetic package},
   journal = {ACM Trans. Math. Software},
  fjournal = {Association for Computing Machinery. Transactions on
              Mathematical Software},
    volume = {4},
      year = {1978},
    number = {1},
     pages = {57–70},
      issn = {0098-3500},
       doi = {10.1145/355769.355775}}