To cite package ‘PNADCperiods’ in publications use:

  Barbosa R, Hecksher M (2026). _PNADCperiods: Identify Reference
  Periods in Brazil's PNADC Survey Data_. R package version 0.1.2,
  <https://CRAN.R-project.org/package=PNADCperiods>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {PNADCperiods: Identify Reference Periods in Brazil's PNADC Survey Data},
    author = {Rogerio J. Barbosa and Marcos Hecksher},
    year = {2026},
    note = {R package version 0.1.2},
    url = {https://CRAN.R-project.org/package=PNADCperiods},
  }

  Hecksher M, Barbosa R (2026). “Estimation of exact months for the
  microdata and rolling quarter series from PNAD Continua.” _SocArXiv
  preprint_. <https://osf.io/preprints/socarxiv/fra5u_v1>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Estimation of exact months for the microdata and rolling quarter series from PNAD Continua},
    author = {Marcos Hecksher and Rogerio J. Barbosa},
    year = {2026},
    journal = {SocArXiv preprint},
    url = {https://osf.io/preprints/socarxiv/fra5u_v1},
  }

  Hecksher M (2020). “Valor Impreciso por Mes Exato: Microdados e
  Indicadores Mensais Baseados na Pnad Continua.” Nota Tecnica Disoc
  62, IPEA, Brasilia, DF. Earlier formulation of the methodology,
  <https://portalantigo.ipea.gov.br/portal/index.php?option=com_content&view=article&id=35453>.

A BibTeX entry for LaTeX users is

  @TechReport{,
    title = {Valor Impreciso por Mes Exato: Microdados e Indicadores Mensais Baseados na Pnad Continua},
    author = {Marcos Hecksher},
    year = {2020},
    institution = {IPEA},
    type = {Nota Tecnica Disoc},
    number = {62},
    address = {Brasilia, DF},
    url = {https://portalantigo.ipea.gov.br/portal/index.php?option=com_content&view=article&id=35453},
    note = {Earlier formulation of the methodology},
  }

  Hecksher M (2020). “Cinco meses de perdas de empregos e simulacao de
  um incentivo a contratacoes.” Nota Tecnica Disoc 87, IPEA, Brasilia,
  DF. Earlier formulation of the methodology.

A BibTeX entry for LaTeX users is

  @TechReport{,
    title = {Cinco meses de perdas de empregos e simulacao de um incentivo a contratacoes},
    author = {Marcos Hecksher},
    year = {2020},
    institution = {IPEA},
    type = {Nota Tecnica Disoc},
    number = {87},
    address = {Brasilia, DF},
    note = {Earlier formulation of the methodology},
  }

  Hecksher M (2020). “Mercado de trabalho: A queda da segunda quinzena
  de marco, aprofundada em abril.” _IPEA - Carta de Conjuntura_, *47*,
  1-6. Earlier formulation of the methodology.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Mercado de trabalho: A queda da segunda quinzena de marco, aprofundada em abril},
    author = {Marcos Hecksher},
    year = {2020},
    journal = {IPEA - Carta de Conjuntura},
    volume = {47},
    pages = {1-6},
    note = {Earlier formulation of the methodology},
  }