To cite the 'CDM' package in publications use:

George AC, Robitzsch A, Kiefer T, Groß J, Ünlü A (2016). “The R Package CDM for Cognitive Diagnosis Models.” Journal of Statistical Software, 74(2), 1–24. doi:10.18637/jss.v074.i02.

Robitzsch A, Kiefer T, George AC, Ünlü A (2022). CDM: Cognitive Diagnosis Modeling. R package version 8.2-6, https://CRAN.R-project.org/package=CDM.

Corresponding BibTeX entries:

  @Article{jsscdm,
    title = {The {R} Package {CDM} for Cognitive Diagnosis Models},
    author = {Ann Cathrice George and Alexander Robitzsch and Thomas
      Kiefer and J{\"u}rgen Gro{\ss} and Ali {\"U}nl{\"u}},
    journal = {Journal of Statistical Software},
    year = {2016},
    volume = {74},
    number = {2},
    pages = {1--24},
    doi = {10.18637/jss.v074.i02},
  }

  @Manual{CDM_8.2-6,
    title = {CDM: Cognitive Diagnosis Modeling},
    author = {Alexander Robitzsch and Thomas Kiefer and Ann Cathrice
      George and Ali {\"U}nl{\"u}},
    year = {2022},
    note = {R package version 8.2-6},
    url = {https://CRAN.R-project.org/package=CDM},
  }