To cite {L0ggm} in publications use:

  Christensen, A. P. (2026). L0ggm: Smooth L0 penalty approximations
  for Gaussian graphical
  models.https://doi.org/10.32614/CRAN.package.L0ggm

A BibTeX entry for LaTeX users is

  @Manual{L0ggm,
    title = {L0ggm: Smooth L0 penalty approximations for Gaussian graphical models},
    author = {Christensen, Alexander},
    year = {2026},
    doi = {10.32614/CRAN.package.L0ggm},
  }