To cite package ‘lucas’ in publications use:

Martinez L, dAndrimont R (2020). lucas: Package to Download and Create the DB of LUCAS Data Harmonized. R package version 1.0, https://CRAN.R-project.org/package=lucas.

Corresponding BibTeX entry:

  @Manual{,
    title = {lucas: Package to Download and Create the DB of LUCAS Data
      Harmonized},
    author = {Laura Martinez and Raphael dAndrimont},
    year = {2020},
    note = {R package version 1.0},
    url = {https://CRAN.R-project.org/package=lucas},
  }