To cite package ‘sstvars’ in publications use:

Virolainen S (2026). sstvars: Toolkit for Reduced Form and Structural Smooth Transition Vector Autoregressive Models. R package version 1.2.4, https://github.com/saviviro/sstvars.

Corresponding BibTeX entry:

  @Manual{,
    title = {sstvars: Toolkit for Reduced Form and Structural Smooth
      Transition Vector Autoregressive Models},
    author = {Savi Virolainen},
    year = {2026},
    note = {R package version 1.2.4},
    url = {https://github.com/saviviro/sstvars},
  }