To cite newmark in publications use:

Verri Kozlowski A (2026). newmark: Uncertainty Analysis in Dynamic Site and Slope Response. R package version 1.1.0, https://github.com/averriK/newmark.

Corresponding BibTeX entry:

  @Manual{,
    title = {{newmark}: Uncertainty Analysis in Dynamic Site and Slope
      Response},
    author = {Alejandro {Verri Kozlowski}},
    year = {2026},
    note = {R package version 1.1.0},
    url = {https://github.com/averriK/newmark},
  }