To cite package ‘shortIRT’ in publications use:

  Epifania OM (2026). _shortIRT: Procedures Based on Item Response
  Theory Models for the Development of Short Test Forms_. R package
  version 2.0.0, <https://CRAN.R-project.org/package=shortIRT>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {shortIRT: Procedures Based on Item Response Theory Models for the
Development of Short Test Forms},
    author = {Ottavia M. Epifania},
    year = {2026},
    note = {R package version 2.0.0},
    url = {https://CRAN.R-project.org/package=shortIRT},
  }