@Manual{r,
  title = {\proglang{R}: A Language and Environment for Statistical  Computing},
  author = {{\proglang{R} Development Core Team}},
  organization = {\proglang{R} Foundation for Statistical Computing},
  address = {Vienna, Austria},
  year = {2012},
  note = {{ISBN} 3-900051-07-0},
  url = {http://www.R-project.org/},
}

@Article{bock:01,
  author = {U B\"ockenholt},
  year = {2001},
  title = {Hierarchical Modeling of Paired Comparison Data},
  journal = {Psychological Methods},
  volume = {6},
  number = {1},
  pages = {49-66},
}

@Book{agre:02,
  year = {2002},
  title = {Categorical Data Analysis},
  edition = {2nd},
  publisher = {John Wiley \& Sons},
  author = {A. Agresti},
}

@InCollection{brad:84,
  title = {Paired Comparisons: Some Basic Procedures and Examples},
  editor = {P. R. Krishnaiah and P. K. Sen},
  booktitle = {Nonparametric Methods},
  publisher = {Elsevier},
  year = {1984},
  volume = {4},
  pages = {299 - 326},
  series = {Handbook of Statistics},
  author = {R. A. Bradley},
}

@Article{brad:terr:52,
  journal = {Biometrika},
  year = {1952},
  title = {Rank Analysis of Incomplete Block Designs {I}: {T}he  Method of Paired Comparisons},
  pages = {324--45},
  author = {R. A. Bradley and M. E. Terry},
  volume = {39},
}

@Article{sham:curt:95,
  journal = {Annals of Human Genetics},
  year = {1995},
  title = {An Extended Transmission/Disequilibrium Test ({TDT}) for  Multi-Allele Marker Loci},
  number = {3},
  pages = {323--336},
  author = {P. C. Sham and D. Curtis},
  volume = {59},
}

@Article{ihak:gent:96,
  journal = {Journal of Computational and Graphical Statistics},
  year = {1996},
  title = {\proglang{R}: A Language for Data Analysis and Graphics},
  number = {3},
  pages = {299--314},
  author = {Ross Ihaka and Robert Gentleman},
  volume = {5},
}

@article{spring:73,
	Journal = {Applied Statistics},
	Year = {1973},
	Title = {Response Surface Fitting Using a Generalization of the {B}radley-{T}erry Paired Comparisons Model},
	Pages = {59--68},
	Author = {Springall, A},
	Volume = {22}}

@article{crit:flig:91,
	Journal = {Psychometrika},
	Year = {1991},
	Title = {Paired Comparison, Triple Comparison, and Ranking Experiments as Generalized Linear Models, and Their Implementation in {GLIM}},
	Pages = {517--533},
	Author = {Critchlow, D E and Fligner, M A},
	Volume = {56}}

@Article{firt:93,
  journal = {Biometrika},
  year = {1993},
  title = {Bias Reduction of Maximum Likelihood Estimates},
  pages = {27--38},
  author = {D Firth},
  volume = {80},
}

@Article{hein:sche:02,
  journal = {Statistics in Medicine},
  year = {2002},
  title = {A Solution to the Problem of Separation in Logistic  Regression},
  author = {G Heinze and M Schemper},
  pages = {2409--2419},
  volume = {21},
}

@Article{stig:94,
  journal = {Statistical Science},
  year = {1994},
  title = {Citation Patterns in the Journals of Statistics and  Probability},
  pages = {94--108},
  author = {S Stigler},
  volume = {9},
}


@Article{bres:93,
  journal = {Journal of the American Statistical Association},
  year = {1993},
  title = {Approximate Inference in Generalized Linear Mixed Models},
  pages = {9--25},
  author = {N E Breslow and D G Clayton},
  volume = {88},
  number = {421},
}

@article{spri:73,
    author = {Springall, A},
    title = {Response Surface Fitting Using a Generalization of the {B}radley-{T}erry Paired Comparison Model},
    year = {1973},
    journal = {Applied Statistics},
    volume = {22},
    pages = {59--68}
}

@article{ditt:98,
    author = {Dittrich, R and Hatzinger, R and Katzenbeisser, W},
    title = {Modelling the Effect of Subject-specific Covariates in Paired Comparison Studies with an Application to University Rankings},
    year = {1998},
    journal = {Applied Statistics},
    volume = {47},
    pages = {511--525},
    keywords = {Bradley-Terry model; Log-linear model}
}

@Article{ditt:01,
  author = {R Dittrich and R Hatzinger and W Katzenbeisser},
  title = {Corrigendum: {M}odelling the Effect of Subject-Specific  Covariates in Paired Comparison Studies with an Application  to University Rankings},
  year = {2001},
  journal = {Applied Statistics},
  volume = {50},
  pages = {247--249},
}

@Article{davi:70,
  author = {R. R. Davidson},
  title = {On Extending the {B}radley-{T}erry Model to Accommodate  Ties in Paired Comparison Experiments},
  year = {1970},
  journal = {Journal of the American Statistical Association},
  volume = {65},
  pages = {317--328},
}

@Article{rao:kupp:67,
  author = {P. V. Rao and L. L. Kupper},
  title = {Ties in Paired-Comparison Experiments: {A} Generalization  of the {B}radley-{T}erry Model},
  year = {1967},
  journal = {Journal of the American Statistical Association},
  volume = {62},
  pages = {194--204},
}

@Article{whit:06,
  author = {Martin J. Whiting and Devi M. Stuart-Fox and David O'Connor and David Firth and Nigel C. Bennett and Simon P. Blomberg},
  title = {{Ultraviolet Signals Ultra-Aggression in a Lizard}},
  journal = {Animal Behaviour},
  year = {{2006}},
  volume = {{72}},
  pages = {353--363},
}

@article{stua:06,
Author = {Stuart-Fox, D M and  Firth, D and  Moussalli, A and Whiting, M J},
Title = {Multiple
  Signals in Chameleon Contests: Designing and Analysing Animal Contests
  as a Tournament},
Journal = {Animal Behaviour},
Year = {{2006}},
Volume = {{71}},
Pages = {1263--1271},
DOI = {10.1016/j.anbehav.2005.07.028}
}

@article{kous:84,
    author = {Kousgaard, N},
    title = {Analysis of a Sound Field Experiment by a Model for Paired Comparisons with Explanatory Variables},
    year = {1984},
    journal = {Scandinavian Journal of Statistics},
    volume = {11},
    pages = {51--57},
    keywords = {Bradley-Terry model}
}

@Article{firt:04,
  author = {D. Firth and R. X. {de Menezes}},
  title = {Quasi-Variances},
  journal = {Biometrika},
  volume = {91},
  year = {2004},
  pages = {65--80},
}

@Article{firt:05,
  author	= {David Firth},
  title		= {Bradley-Terry Models in \proglang{R}},
  journal	= {Journal of Statistical Software},
  year		= {2005},
  volume	= {12},
  number	= {1},
  pages		= {1--12},
  url		= {http://www.jstatsoft.org/v12/i01/}
}

@Manual{kosm:07,
  title = {\pkg{brglm}: Bias Reduction in Binary-Response GLMs},
  author = {Ioannis Kosmidis},
  year = {2007},
  note = {\proglang{R}~package version~0.5-6},
  url = {http://www.ucl.ac.uk/~ucakiko/software.html},
}

@Manual{bate:11,
  title = {\pkg{lme4}: Linear Mixed-Effects Models Using \proglang{S}4 Classes},
  author = {Douglas Bates and Martin M\"achler and Ben Bolker},
  year = {2011},
  note = {\proglang{R}~package version~0.999375-42},
  url = {http://CRAN.R-project.org/package=lme4},
}

@Manual{firt:10,
  title = {\pkg{qvcalc}: Quasi-Variances for Factor Effects in  Statistical Models},
  author = {David Firth},
  year = {2010},
  note = {\proglang{R}~package version~0.8-7},
  url = {http://CRAN.R-project.org/package=qvcalc},
}

@Article{hatz:12,
  author        = {Reinhold Hatzinger and Regina Dittrich},
  title         = {\pkg{prefmod}: An \proglang{R} Package for Modeling Preferences Based on Paired Comparisons, Rankings, or Ratings},
  journal       = {Journal of Statistical Software},
  year          = {2012},
  volume        = {48},
  number        = {10},
  pages         = {1--31},
  url           = {http://www.jstatsoft.org/v48/i10/}
}

@Article{turn:12,
  author = {Heather Turner and David Firth},
  title = {Bradley-Terry Models in \proglang{R}: The \pkg{BradleyTerry2} Package},
  journal       = {Journal of Statistical Software},
  year          = {2012},
  volume        = {48},
  number        = {9},
  pages         = {1--21},
  url           = {http://www.jstatsoft.org/v48/i09/}
}