To cite archivist in publications use:

Biecek P, Kosinski M (2017). “archivist: An R Package for Managing, Recording and Restoring Data Analysis Results.” Journal of Statistical Software, 82(11), 1–28. doi:10.18637/jss.v082.i11.

Corresponding BibTeX entry:

  @Article{,
    title = {{archivist}: An {R} Package for Managing, Recording and
      Restoring Data Analysis Results},
    author = {Przemyslaw Biecek and Marcin Kosinski},
    journal = {Journal of Statistical Software},
    year = {2017},
    volume = {82},
    number = {11},
    pages = {1--28},
    doi = {10.18637/jss.v082.i11},
  }