To cite package ‘ggmice’ in publications use:

  Oberman H (2022). _'ggmice': Visualizations for 'mice' with
  'ggplot2'_. doi:10.5281/zenodo.6532702
  <https://doi.org/10.5281/zenodo.6532702>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {'ggmice': Visualizations for 'mice' with 'ggplot2'},
    author = {Hanne Oberman},
    year = {2022},
    doi = {https://doi.org/10.5281/zenodo.6532702},
  }