To cite pre in publications use:

Fokkema M (2020). “Fitting Prediction Rule Ensembles with R Package pre.” Journal of Statistical Software, 92(12), 1–30. doi:10.18637/jss.v092.i12.

Corresponding BibTeX entry:

  @Article{,
    title = {Fitting Prediction Rule Ensembles with {R} Package {pre}},
    author = {Marjolein Fokkema},
    journal = {Journal of Statistical Software},
    year = {2020},
    volume = {92},
    number = {12},
    pages = {1--30},
    doi = {10.18637/jss.v092.i12},
  }