To cite pencal in publications use:

  Signorelli, M. (2024). pencal: an R Package for the Dynamic
  Prediction of Survival with Many Longitudinal Predictors To appear
  in: The R Journal. Preprint: arXiv:2309.15600 URL
  https://doi.org/10.48550/arXiv.2309.15600

A BibTeX entry for LaTeX users is

  @Article{,
    title = {pencal: an R Package for the Dynamic Prediction of Survival with Many Longitudinal Predictors},
    author = {{M. Signorelli}},
    journal = {To appear in: The R Journal},
    year = {2024},
    number = {arXiv:2309.15600},
    url = {https://doi.org/10.48550/arXiv.2309.15600},
  }

  Signorelli, M., Spitali, P., Al-Khalili Szigyarto, C., The MARK-MD
  Consortium, Tsonaka, R. (2021). Penalized regression calibration: A
  method for the prediction of survival outcomes using complex
  longitudinal and high-dimensional data Statistics in Medicine, 40
  (27), 6178-6196 URL https://doi.org/10.1002/sim.9178

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Penalized regression calibration: A method for the prediction of survival outcomes using complex longitudinal and high-dimensional data},
    author = {{M. Signorelli} and {P. Spitali} and {C. Al-Khalili Szigyarto} and {The MARK-MD Consortium} and {R. Tsonaka}},
    journal = {Statistics in Medicine},
    year = {2021},
    volume = {40},
    number = {27},
    pages = {6178--6196},
    url = {https://doi.org/10.1002/sim.9178},
  }