To cite package ‘slim’ in publications use:

Farewell D (2017). slim: Singular Linear Models for Longitudinal Data. R package version 0.1.1, https://CRAN.R-project.org/package=slim.

Corresponding BibTeX entry:

  @Manual{,
    title = {slim: Singular Linear Models for Longitudinal Data},
    author = {Daniel Farewell},
    year = {2017},
    note = {R package version 0.1.1},
    url = {https://CRAN.R-project.org/package=slim},
  }