To cite package ‘SIRE’ in publications use:

Vacca G (2019). SIRE: Finding Feedback Effects in SEM and Testing for Their Significance. R package version 1.1.0, https://CRAN.R-project.org/package=SIRE.

Corresponding BibTeX entry:

  @Manual{,
    title = {SIRE: Finding Feedback Effects in SEM and Testing for
      Their Significance},
    author = {Gianmarco Vacca},
    year = {2019},
    note = {R package version 1.1.0},
    url = {https://CRAN.R-project.org/package=SIRE},
  }