@software{pari-gp:software,
       key = {PARI-GP},
      type = {free interactive system and C library},
      note = {Computer algebra system designed for computations in number theory.
              Many transcendental functions are also included.
              PARI is also available as a C library to allow for faster computations.
              Originally developed by Henri Cohen and co-workers at the Universit\'{e} Bordeaux I.},
     links = {\URL[Home Page]{http://pari.math.u-bordeaux.fr/}}}