To cite sgr in publications use:

Luigi Lombardi and Massimiliano Pastore (2014). sgr: A Package for Simulating Conditional Fake Ordinal Data. The R Journal, 6(1), 164-177. URL http://journal.r-project.org/archive/2014-1/lombardi-pastore.pdf.

Corresponding BibTeX entry:

  @Article{,
    title = {{sgr}: A Package for Simulating Conditional Fake Ordinal
      Data},
    author = {Luigi Lombardi and Massimiliano Pastore},
    journal = {The R Journal},
    year = {2014},
    volume = {6},
    number = {1},
    pages = {164--177},
    url =
      {http://journal.r-project.org/archive/2014-1/lombardi-pastore.pd},
  }