To cite package ‘multivar’ in publications use:

  Fisher Z (2022). _multivar: Penalized Estimation of Multiple-Subject
  Vector Autoregressive (multi-VAR) Models_. R package version 1.1.0,
  <https://CRAN.R-project.org/package=multivar>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {multivar: Penalized Estimation of Multiple-Subject Vector Autoregressive
(multi-VAR) Models},
    author = {Zachary Fisher},
    year = {2022},
    note = {R package version 1.1.0},
    url = {https://CRAN.R-project.org/package=multivar},
  }