To cite package ‘RKEA’ in publications use:

Feinerer I, Hornik K (2015). RKEA: R/KEA Interface. R package version 0.0-6, https://CRAN.R-project.org/package=RKEA.

Corresponding BibTeX entry:

  @Manual{,
    title = {RKEA: R/KEA Interface},
    author = {Ingo Feinerer and Kurt Hornik},
    year = {2015},
    note = {R package version 0.0-6},
    url = {https://CRAN.R-project.org/package=RKEA},
  }