To cite package ‘impactflu’ in publications use:

Khvorov A (2021). impactflu: Quantification of Population-Level Impact of Vaccination. R package version 0.1.0.9000, https://github.com/khvorov45/impactflu.

Corresponding BibTeX entry:

  @Manual{,
    title = {impactflu: Quantification of Population-Level Impact of
      Vaccination},
    author = {Arseniy Khvorov},
    year = {2021},
    note = {R package version 0.1.0.9000},
    url = {https://github.com/khvorov45/impactflu},
  }