To cite package ‘coxphSGD’ in publications use:

Kosinski M (2017). coxphSGD: Stochastic Gradient Descent log-Likelihood Estimation in Cox Proportional Hazards Model. R package version 0.2.1, https://github.com/marcinkosinski/coxphsgd.

Corresponding BibTeX entry:

  @Manual{,
    title = {coxphSGD: Stochastic Gradient Descent log-Likelihood
      Estimation in Cox Proportional Hazards Model},
    author = {Marcin Kosinski},
    year = {2017},
    note = {R package version 0.2.1},
    url = {https://github.com/marcinkosinski/coxphsgd},
  }