To cite tdaR, cite TDA and the package:

  Rohwer G, Poetter U (2009). _TDA User's Manual_. Version 6.4,
  <https://www.stat.rub.de/tda.html>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {TDA User's Manual},
    author = {Goetz Rohwer and Ulrich Poetter},
    year = {2009},
    note = {Version 6.4},
    url = {https://www.stat.rub.de/tda.html},
  }

  Rohwer G, Poetter U, Garbuszus J (2026). _tdaR: Transition Data
  Analysis_. R package version 0.1.0,
  <https://github.com/JanMarvin/TDA>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {tdaR: Transition Data Analysis},
    author = {Goetz Rohwer and Ulrich Poetter and Jan Marvin Garbuszus},
    year = {2026},
    note = {R package version 0.1.0},
    url = {https://github.com/JanMarvin/TDA},
  }