To cite package ‘SPARQL’ in publications use:

  van Hage WR, Kauppinen wcfT, Graeler B, Davis C, Hoeksema J,
  Ruttenberg A, Bahls. D (2013). _SPARQL: SPARQL client_. R package
  version 1.16, <https://CRAN.R-project.org/package=SPARQL>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {SPARQL: SPARQL client},
    author = {Willem Robert {van Hage} and with contributions from: Tomi Kauppinen and Benedikt Graeler and Christopher Davis and Jesper Hoeksema and Alan Ruttenberg and Daniel Bahls.},
    year = {2013},
    note = {R package version 1.16},
    url = {https://CRAN.R-project.org/package=SPARQL},
  }

ATTENTION: This citation information has been auto-generated from the
package DESCRIPTION file and may need manual editing, see
‘help("citation")’.