To cite mokken in publications use:

Van der Ark LA (2007). “Mokken Scale Analysis in R.” Journal of Statistical Software, 20(11), 1–19. https://www.jstatsoft.org/article/view/v020i11.

Van der Ark LA (2012). “New Developments in Mokken Scale Analysis in R.” Journal of Statistical Software, 48(5), 1–27. https://www.jstatsoft.org/article/view/v048i05.

Corresponding BibTeX entries:

  @Article{,
    title = {Mokken Scale Analysis in {R}},
    author = {L. Andries {Van der Ark}},
    journal = {Journal of Statistical Software},
    year = {2007},
    volume = {20},
    number = {11},
    pages = {1--19},
    url = {https://www.jstatsoft.org/article/view/v020i11},
  }

  @Article{,
    title = {New Developments in Mokken Scale Analysis in {R}},
    author = {L. Andries {Van der Ark}},
    journal = {Journal of Statistical Software},
    year = {2012},
    volume = {48},
    number = {5},
    pages = {1--27},
    url = {https://www.jstatsoft.org/article/view/v048i05},
  }