To cite package 'ShinyItemAnalysis' in publications use:

Martinkova P., Drabinova A., Leder O., & Houdek J. (2017). ShinyItemAnalysis: Test and item analysis via shiny. R package version 1.2.3.

Corresponding BibTeX entry:

  @Manual{,
    title = {{ShinyItemAnalysis}: {T}est and item analysis via shiny},
    author = {Patricia Martinkova and Adela Drabinova and Ondrej Leder
      and Jakub Houdek},
    year = {2017},
    note = {R package version 1.2.3},
    url = {https://CRAN.R-project.org/package=ShinyItemAnalysis},
  }