To cite package ‘EVI’ in publications use:

  Meletis E, Pateras K, Eusebi P, Denwood M, Kostoulas P (2023). _EVI:
  Epidemic Volatility Index as an Early-Warning Tool_. R package
  version 0.2.0-0, <https://CRAN.R-project.org/package=EVI>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {EVI: Epidemic Volatility Index as an Early-Warning Tool},
    author = {Eletherios Meletis and Konstantinos Pateras and Paolo Eusebi and Matt Denwood and Polychronis Kostoulas},
    year = {2023},
    note = {R package version 0.2.0-0},
    url = {https://CRAN.R-project.org/package=EVI},
  }