To cite package ‘spbal’ in publications use:

  Davies P, Robertson B, van Dam-Bates P, Gansell O (2026). _spbal:
  Spatially Balanced Sampling Algorithms_. R package version 1.1.0,
  <https://CRAN.R-project.org/package=spbal>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {spbal: Spatially Balanced Sampling Algorithms},
    author = {Phil Davies and Blair Robertson and Paul {van Dam-Bates} and Oliver Gansell},
    year = {2026},
    note = {R package version 1.1.0},
    url = {https://CRAN.R-project.org/package=spbal},
  }