To cite package ‘ulex’ in publications use:

  Marty R (2026). _ulex: Unique Location Extractor_. R package version
  0.1.1, <https://github.com/dime-worldbank/ulex>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {ulex: Unique Location Extractor},
    author = {Robert Marty},
    year = {2026},
    note = {R package version 0.1.1},
    url = {https://github.com/dime-worldbank/ulex},
  }