To cite package ‘givitiR’ in publications use:

  Nattino G, Finazzi S, Bertolini G, Rossi C, Carrara G (2017).
  _givitiR: The GiViTI Calibration Test and Belt_. R package version
  1.3, <https://CRAN.R-project.org/package=givitiR>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {givitiR: The GiViTI Calibration Test and Belt},
    author = {Giovanni Nattino and Stefano Finazzi and Guido Bertolini and Carlotta Rossi and Greta Carrara},
    year = {2017},
    note = {R package version 1.3},
    url = {https://CRAN.R-project.org/package=givitiR},
  }