To cite package ‘Certara.NLME8’ in publications use:

  Fred S, Tomashevskiy M, Craig J (2024). _Certara.NLME8: Utilities for
  Certara's Nonlinear Mixed-Effects Modeling Engine_. R package version
  3.0.1, <https://CRAN.R-project.org/package=Certara.NLME8>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Certara.NLME8: Utilities for Certara's Nonlinear Mixed-Effects Modeling Engine},
    author = {Soltanshahi Fred and Michael Tomashevskiy and James Craig},
    year = {2024},
    note = {R package version 3.0.1},
    url = {https://CRAN.R-project.org/package=Certara.NLME8},
  }