@Article{sanchez-martinez11c,
  author =       {Felipe S\'anchez-Mart\'inez and Mikel L. Forcada},
  title =        {Free/open-source machine translation: preface},
  journal =      {Machine Translation},
  year =         2011,
  note =         {Special Issue: Free/Open-Source Machine Translation},
  volume =       25,
  number =       2,
  pages =        {83--86},
}