Turner H, Firth D (2012). “Bradley-Terry Models in R: The BradleyTerry2 Package.” Journal of Statistical Software, 48(9), 1–21. doi:10.18637/jss.v048.i09.

Corresponding BibTeX entry:

  @Article{,
    title = {Bradley-Terry Models in {R}: The {BradleyTerry2} Package},
    author = {Heather Turner and David Firth},
    journal = {Journal of Statistical Software},
    year = {2012},
    volume = {48},
    number = {9},
    pages = {1--21},
    doi = {10.18637/jss.v048.i09},
  }