To cite koRpus.lang.en in publications use:

Michalke M (2020). koRpus.lang.en: Language Support for 'koRpus' Package: English. (Version 0.1-4), https://reaktanz.de/?c=hacking&s=koRpus.

Corresponding BibTeX entry:

  @Manual{,
    title = {koRpus.lang.en: Language Support for 'koRpus' Package:
      English},
    author = {Meik Michalke},
    year = {2020},
    note = {(Version 0.1-4)},
    url = {https://reaktanz.de/?c=hacking&s=koRpus},
  }