To cite package ‘parallelly’ in publications use:

  Bengtsson H (2024). _parallelly: Enhancing the 'parallel' Package_. R
  package version 1.38.0, ,
  <https://github.com/henrikbengtsson/parallelly>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {parallelly: Enhancing the 'parallel' Package},
    author = {Henrik Bengtsson},
    year = {2024},
    note = {R package version 1.38.0, 
},
    url = {https://github.com/henrikbengtsson/parallelly},
  }