To cite package ‘HZIP’ in publications use:

  Fabio L, Carrasco J, Lachos V, Chen M (2025). _HZIP: Likelihood-based
  inference for joint modeling of correlated count and binary outcomes
  with extra variability and zeros_. R package version 0.1.0,
  <https://github.com/carrascojalmar/hzip>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {HZIP: Likelihood-based inference for joint modeling of correlated
count and binary outcomes with extra variability and zeros},
    author = {Lizandra C. Fabio and Jalmar M.F. Carrasco and Victor H. Lachos and Ming-Hui Chen},
    year = {2025},
    note = {R package version 0.1.0},
    url = {https://github.com/carrascojalmar/hzip},
  }