To cite package ‘pcensmix’ in publications use:

  Fallah L, Hinde J (2017). _pcensmix: Model Fitting to Progressively
  Censored Mixture Data_. R package version 1.2-1,
  <https://CRAN.R-project.org/package=pcensmix>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {pcensmix: Model Fitting to Progressively Censored Mixture Data},
    author = {Lida Fallah and John Hinde},
    year = {2017},
    note = {R package version 1.2-1},
    url = {https://CRAN.R-project.org/package=pcensmix},
  }