To cite causalOT in publications use:

Dunipace E (2022). causalOT: Optimal transport weights for causal inference. R package version 0.1, https://github.com/ericdunipace/approxOT.

Corresponding BibTeX entry:

  @Manual{,
    title = {{causalOT}: Optimal transport weights for causal
      inference},
    author = {Eric A. Dunipace},
    year = {2022},
    note = {R package version 0.1},
    url = {https://github.com/ericdunipace/approxOT},
  }