To cite package ‘sts’ in publications use:

  Mankad S, Chen L (2026). _sts: Estimation of the Structural Topic and
  Sentiment-Discourse Model for Text Analysis_. R package version 1.6,
  <https://github.com/mankad-research/sts_r>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {sts: Estimation of the Structural Topic and Sentiment-Discourse Model
for Text Analysis},
    author = {Shawn Mankad and Li Chen},
    year = {2026},
    note = {R package version 1.6},
    url = {https://github.com/mankad-research/sts_r},
  }