inst/CITATION
Reif, M. and Steinfeld, J. (2021). PP: Estimation of person parameters for the 1,2,3,4-PL model and the GPCM. R package version 0.6.3-11. https://github.com/jansteinfeld/PP
@Manual{,
title = {PP: Estimation of person parameters for the 1,2,3,4-PL model and the GPCM.},
author = {Manuel Reif and Jan Steinfeld},
year = {2021},
note = {R package version 0.6.3-11},
url = {https://github.com/jansteinfeld/PP},
}