To cite the 'DATAstudio' package in publications use:

  Miguel de Carvalho(2022). DATAstudio: The Research Data Warehouse of
  Miguel de Carvalho.R package version 1.1.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {DATAstudio: The Research Data Warehouse of Miguel de Carvalho},
    author = {M. {de Carvalho}},
    year = {2022},
    note = {R package version 1.1},
  }