To cite package ‘epmfd’ in publications use:

  Bulut H, Avşar A (2025). _epmfd: Exploratory and Person/Item Misfit
  Diagnostics for Polytomous Data_. R package version 1.1.1,
  <https://github.com/hsnbulut/epmfd>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {epmfd: Exploratory and Person/Item Misfit Diagnostics for Polytomous
Data},
    author = {Hasan Bulut and Asiye Şengül Avşar},
    year = {2025},
    note = {R package version 1.1.1},
    url = {https://github.com/hsnbulut/epmfd},
  }