To cite covsim in publications use:

Foldnes N, Grønneberg S (2019). “Pernicious Polychorics: The Impact and Detection of Underlying Non-normality.” Structural Equation Modeling: A Multidisciplinary Journal. https://doi.org/10.1080/10705511.2019.1673168.

Corresponding BibTeX entry:

  @Article{,
    title = {Pernicious Polychorics: The Impact and Detection of
      Underlying Non-normality},
    author = {Njål Foldnes and Steffen Grønneberg},
    journal = {Structural Equation Modeling: A Multidisciplinary
      Journal},
    year = {2019},
    url = {https://doi.org/10.1080/10705511.2019.1673168},
  }