To cite package ‘optimus’ in publications use:

Lyons M (2018). optimus: Model Based Diagnostics for Multivariate Cluster Analysis. R package version 0.2.0, https://github.com/mitchest/optimus.

Corresponding BibTeX entry:

  @Manual{,
    title = {optimus: Model Based Diagnostics for Multivariate Cluster
      Analysis},
    author = {Mitchell Lyons},
    year = {2018},
    note = {R package version 0.2.0},
    url = {https://github.com/mitchest/optimus},
  }