To cite KRIS in publications use:

Chaichoompu K, Abegaz F, Tongsima S, James Shaw P, Sakuntabhai A, Pereira L, Van Steen K (2018). KRIS: Keen and Reliable Interface Subroutines for Bioinformatic Analysis. R package version 1.1.6, https://CRAN.R-project.org/package=KRIS.

Corresponding BibTeX entry:

  @Manual{,
    title = {KRIS: Keen and Reliable Interface Subroutines for
      Bioinformatic Analysis},
    author = {Kridsadakorn Chaichoompu and Fentaw Abegaz and Sissades
      Tongsima and Philip {James Shaw} and Anavaj Sakuntabhai and Luisa
      Pereira and Kristel {Van Steen}},
    year = {2018},
    note = {R package version 1.1.6},
    url = {https://CRAN.R-project.org/package=KRIS},
  }