To cite gcmrec in publications use:

For the model fitted by the package:

  Peña EA, Hollander M (2004). Models for recurrent events in
  reliability and survival analysis. In Mathematical Reliability: An
  Expository Perspective, chapter 6, pp. 105-123. Kluwer Academic
  Publishers.

A BibTeX entry for LaTeX users is

  @InCollection{,
    title = {Models for recurrent events in reliability and survival analysis},
    author = {Edsel A. Peña and Myles Hollander},
    booktitle = {Mathematical Reliability: An Expository Perspective},
    chapter = {6},
    pages = {105--123},
    publisher = {Kluwer Academic Publishers},
    year = {2004},
  }

For the cancer model (argument 'cancer'):

  González JR, Peña EA, Slate EH (2005). Modelling intervention effects
  after cancer relapses. Statistics in Medicine, 24(24), 3959-3975.
  doi:10.1002/sim.2410

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Modelling intervention effects after cancer relapses},
    author = {Juan R. González and Edsel A. Peña and Elizabeth H. Slate},
    journal = {Statistics in Medicine},
    volume = {24},
    number = {24},
    pages = {3959--3975},
    year = {2005},
    doi = {10.1002/sim.2410},
  }

For the software itself:

  Pelegri-Siso D, González JR, Slate EH, Peña EA (2026). gcmrec:
  General Class of Models for Recurrent Event Data. R package version
  2.0.0. https://github.com/isglobal-brge/gcmrec

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {{gcmrec}: General Class of Models for Recurrent Event Data},
    author = {Dolors Pelegri-Siso and Juan R. González and Elizabeth H. Slate and Edsel A. Peña},
    year = {2026},
    note = {R package version 2.0.0},
    url = {https://github.com/isglobal-brge/gcmrec},
  }