@article{determinants,
  title = "A simple division-free algorithm for computing determinants",
  author = "Richard S. Bird",
  year = "2011",
  journal = "Information Processing Letters",
  url = "http://dx.doi.org/10.1016/j.ipl.2011.08.006",
  doi = "10.1016/j.ipl.2011.08.006",
}