To cite package ‘icmstate’ in publications use:

  Gomon D, Putter H (2024). _icmstate: Interval Censored Multi-State
  Models_. R package version 0.1.0,
  <https://CRAN.R-project.org/package=icmstate>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {icmstate: Interval Censored Multi-State Models},
    author = {Daniel Gomon and Hein Putter},
    year = {2024},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=icmstate},
  }