To cite package ‘hhh4ZI’ in publications use:

  Lu J, Meyer S (2023). “A zero-inflated endemic-epidemic model with an
  application to measles time series in Germany.” _Biometrical
  Journal_, *65*(8), 2100408. doi:10.1002/bimj.202100408
  <https://doi.org/10.1002/bimj.202100408>.

A BibTeX entry for LaTeX users is

  @Article{,
    author = {Junyi Lu and Sebastian Meyer},
    title = {A zero-inflated endemic-epidemic model with an application to measles time series in {Germany}},
    year = {2023},
    journal = {Biometrical Journal},
    volume = {65},
    number = {8},
    pages = {2100408},
    doi = {10.1002/bimj.202100408},
  }