To cite package ‘recommenderlab’ in publications use:

  Hahsler M (2023). _recommenderlab: Lab for Developing and Testing
  Recommender Algorithms_. R package version 1.0.6,
  <https://github.com/mhahsler/recommenderlab>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {recommenderlab: Lab for Developing and Testing Recommender Algorithms},
    author = {Michael Hahsler},
    year = {2023},
    note = {R package version 1.0.6},
    url = {https://github.com/mhahsler/recommenderlab},
  }

  Hahsler M (2022). “recommenderlab: An R Framework for Developing and
  Testing Recommendation Algorithms.” arXiv:2205.12371 [cs.IR].
  doi:10.48550/ARXIV.2205.12371
  <https://doi.org/10.48550/ARXIV.2205.12371>.

A BibTeX entry for LaTeX users is

  @Misc{,
    title = {recommenderlab: An R Framework for Developing and Testing Recommendation Algorithms},
    author = {Michael Hahsler},
    year = {2022},
    doi = {10.48550/ARXIV.2205.12371},
    howpublished = {arXiv:2205.12371 [cs.IR]},
    month = {May},
  }