Bates D, Maechler M, Bolker B and Walker S (2014). lme4: Linear mixed-effects models using Eigen and S4. R package version 1.1-7, http://CRAN.R-project.org/package=lme4.

Bates D, Maechler M, Bolker BM and Walker S (2014). “lme4: Linear mixed-effects models using Eigen and S4.” ArXiv e-print; submitted to Journal of Statistical Software, http://arxiv.org/abs/1406.5823.

Corresponding BibTeX entries:

  @Manual{,
    title = {{lme4}: Linear mixed-effects models using Eigen and S4},
    author = {Douglas Bates and Martin Maechler and Ben Bolker and
      Steven Walker},
    year = {2014},
    note = {R package version 1.1-7},
    url = {http://CRAN.R-project.org/package=lme4},
  }
  @Misc{,
    title = {{lme4}: Linear mixed-effects models using Eigen and S4},
    year = {2014},
    author = {Douglas Bates and Martin Maechler and Benjamin M. Bolker
      and Steven Walker},
    note = {ArXiv e-print; submitted to \emph{Journal of Statistical
      Software}},
    url = {http://arxiv.org/abs/1406.5823},
  }