To cite the 'sirt' package in publications use:
Robitzsch A (2025).sirt: Supplementary Item Response Theory Models.doi:10.32614/CRAN.package.sirt, R package version 4.2-133,https://CRAN.R-project.org/package=sirt.
Corresponding BibTeX entry:
@Manual{sirt_4.2-133, title = {sirt: Supplementary Item Response Theory Models}, author = {Alexander Robitzsch}, year = {2025}, note = {R package version 4.2-133}, url = {https://CRAN.R-project.org/package=sirt}, doi = {10.32614/CRAN.package.sirt}, }