If you would like to cite readbulk in your published research, you can cite it as follows:

Kieslich PJ, Henninger F (2016). Readbulk: An R package for reading and combining multiple data files. doi:10.5281/zenodo.596649.

Corresponding BibTeX entry:

  @Manual{,
    title = {Readbulk: {A}n {R} package for reading and combining
      multiple data files},
    author = {Pascal J. Kieslich and Felix Henninger},
    year = {2016},
    doi = {10.5281/zenodo.596649},
  }