To cite package ‘tuneRanger’ in publications use:

  Probst P, Wright M, Boulesteix A (2018). “Hyperparameters and Tuning
  Strategies for Random Forest.” _Wiley Interdisciplinary Reviews: Data
  Mining and Knowledge Discovery_. doi:10.1002/widm.1301
  <https://doi.org/10.1002/widm.1301>.

A BibTeX entry for LaTeX users is

  @Article{tuneRanger,
    title = {Hyperparameters and Tuning Strategies for Random Forest},
    author = {Philipp Probst and Marvin Wright and Anne-Laure Boulesteix},
    journal = {Wiley Interdisciplinary Reviews: Data Mining and Knowledge Discovery},
    year = {2018},
    doi = {10.1002/widm.1301},
    publisher = {Wiley Online Library},
  }