To cite package ‘geecure’ in publications use:

Niu Y, Peng Y (2018). geecure: Marginal Proportional Hazards Mixture Cure Models with Generalized Estimating Equations. R package version 1.0-6, https://CRAN.R-project.org/package=geecure.

Corresponding BibTeX entry:

  @Manual{,
    title = {geecure: Marginal Proportional Hazards Mixture Cure Models
      with Generalized Estimating Equations},
    author = {Yi Niu and Yingwei Peng},
    year = {2018},
    note = {R package version 1.0-6},
    url = {https://CRAN.R-project.org/package=geecure},
  }