To cite the UNF package in publications use:

Leeper TJ (2021). UNF: Tools for creating universal numeric fingerprints for data. R package version 2.0.7.

Altman M, Gill J, McDonald M (2003). Numerical Issues in Statistical Computing for the Social Scientist, First edition. John Wiley and Sons, New York. ISBN ISBN 0-471-23633-0.

Corresponding BibTeX entries:

  @Manual{,
    title = {UNF: Tools for creating universal numeric fingerprints for
      data},
    author = {Thomas J. Leeper},
    year = {2021},
    note = {R package version 2.0.7},
  }
  @Book{,
    title = {Numerical Issues in Statistical Computing for the Social
      Scientist},
    author = {M. Altman and J. Gill and M.P. McDonald},
    publisher = {John Wiley and Sons},
    edition = {First},
    address = {New York},
    year = {2003},
    isbn = {ISBN 0-471-23633-0},
  }