To cite package ‘ess’ in publications use:

Lindskou M (2021). ess: Efficient Stepwise Selection in Decomposable Models. R package version 1.1.2, https://github.com/mlindsk/ess.

Corresponding BibTeX entry:

  @Manual{,
    title = {ess: Efficient Stepwise Selection in Decomposable Models},
    author = {Mads Lindskou},
    year = {2021},
    note = {R package version 1.1.2},
    url = {https://github.com/mlindsk/ess},
  }