To cite package ‘gbm3’ in publications use:

  Hickey J, Metcalfe P, Ridgeway G, Schroedl S, Southworth H, Therneau
  T (2026). _gbm3: Generalized Boosted Regression Models_. R package
  version 3.0.1, <https://CRAN.R-project.org/package=gbm3>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {gbm3: Generalized Boosted Regression Models},
    author = {James Hickey and Paul Metcalfe and Greg Ridgeway and Stefan Schroedl and Harry Southworth and Terry Therneau},
    year = {2026},
    note = {R package version 3.0.1},
    url = {https://CRAN.R-project.org/package=gbm3},
  }