To cite package ‘SRMERS’ in publications use:

  Yin Q, Peddada S, Adibi J, Jeong J (2026). _SRMERS: Semi-Parametric
  Shape-Restricted Fixed/Mixed Effect(s) Regression Spline_. R package
  version 0.1.1, <https://CRAN.R-project.org/package=SRMERS>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {SRMERS: Semi-Parametric Shape-Restricted Fixed/Mixed Effect(s)
Regression Spline},
    author = {Qing Yin and Shyamal Das Peddada and Jennifer Joan Adibi and Jong-Hyeon Jeong},
    year = {2026},
    note = {R package version 0.1.1},
    url = {https://CRAN.R-project.org/package=SRMERS},
  }