To cite package ‘fieldopt’ in publications use:

Leite A, Ospina R, Ferraz C (2026). fieldopt: Area-Frame and Dual-Frame Survey Design under Real Field Cost. R package version 0.1.0.9001, https://github.com/castlaboratory/fieldopt.

Corresponding BibTeX entry:

  @Manual{,
    title = {fieldopt: Area-Frame and Dual-Frame Survey Design under
      Real Field Cost},
    author = {André Leite and Raydonal Ospina and Cristiano Ferraz},
    year = {2026},
    note = {R package version 0.1.0.9001},
    url = {https://github.com/castlaboratory/fieldopt},
  }