To cite package ‘ELYP’ in publications use:

  Zhou M (2025). _ELYP: Empirical Likelihood Analysis for the Cox Model
  and Yang-Prentice (2005) Model_. R package version 0.7-6,
  <https://CRAN.R-project.org/package=ELYP>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {ELYP: Empirical Likelihood Analysis for the Cox Model and
Yang-Prentice (2005) Model},
    author = {Mai Zhou},
    year = {2025},
    note = {R package version 0.7-6},
    url = {https://CRAN.R-project.org/package=ELYP},
  }