To cite package ‘janus’ in publications use:

Vercellino G (2022). janus: Optimized Recommending System Based on 'tensorflow'. R package version 1.0.0, https://CRAN.R-project.org/package=janus.

Corresponding BibTeX entry:

  @Manual{,
    title = {janus: Optimized Recommending System Based on
      'tensorflow'},
    author = {Giancarlo Vercellino},
    year = {2022},
    note = {R package version 1.0.0},
    url = {https://CRAN.R-project.org/package=janus},
  }