To cite package ‘GFM’ in publications use:

Liu W, Lin H, Zheng S, Liu J, Nie J (2026). GFM: Generalized Factor Model. R package version 1.2.2, https://CRAN.R-project.org/package=GFM.

Corresponding BibTeX entry:

  @Manual{,
    title = {GFM: Generalized Factor Model},
    author = {Wei Liu and Huazhen Lin and Shurong Zheng and Jin Liu and
      Jinyu Nie},
    year = {2026},
    note = {R package version 1.2.2},
    url = {https://CRAN.R-project.org/package=GFM},
  }