To cite koRpus.lang.en in publications use:

Michalke, M. (2019). koRpus.lang.en: Language Support for 'koRpus' Package: English (Version 0.1-3). Available from 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 = {2019},
    note = {(Version 0.1-3)},
    url = {https://reaktanz.de/?c=hacking&s=koRpus},
  }