To cite package ‘SFM’ in publications use:

  Guo G, Jin Y (2024). _SFM: A Package for Analyzing Skew Factor
  Models_. R package version 0.1.0,
  <https://CRAN.R-project.org/package=SFM>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {SFM: A Package for Analyzing Skew Factor Models},
    author = {Guangbao Guo and Yu Jin},
    year = {2024},
    note = {R package version 0.1.0},
    url = {https://CRAN.R-project.org/package=SFM},
  }