To cite package ‘nlpsem’ in publications use:

Liu J (2026). nlpsem: Nonlinear Longitudinal Process in Structural Equation Modeling. R package version 0.4, https://github.com/veronica0206/nlpsem.

Corresponding BibTeX entry:

  @Manual{,
    title = {nlpsem: Nonlinear Longitudinal Process in Structural
      Equation Modeling},
    author = {Jin Liu},
    year = {2026},
    note = {R package version 0.4},
    url = {https://github.com/veronica0206/nlpsem},
  }