To cite the 'mnlfa' package in publications use:

Robitzsch A (2022). mnlfa: Moderated nonlinear factor analysis. R package version 0.2-4, https://CRAN.R-project.org/package=mnlfa.

Corresponding BibTeX entry:

  @Manual{,
    title = {mnlfa: Moderated nonlinear factor analysis},
    author = {Alexander Robitzsch},
    year = {2022},
    note = {R package version 0.2-4},
    url = {https://CRAN.R-project.org/package=mnlfa},
  }