To cite package ‘clusterv’ in publications use:

  Valentini, Giorgio (2005). “Clusterv: a tool for assessing the
  reliability of clusters discovered in DNA microarray data.”
  _Bioinformatics_, *22*(3), 369-370. ISSN 1367-4803.
  doi:10.1093/bioinformatics/bti817
  <https://doi.org/10.1093/bioinformatics/bti817>.
  <https://doi.org/10.1093/bioinformatics/bti817>.

A BibTeX entry for LaTeX users is

  @Article{valentini2005clusterv,
    title = {Clusterv: a tool for assessing the reliability of clusters discovered in DNA microarray data},
    author = {{Valentini} and {Giorgio}},
    journal = {Bioinformatics},
    year = {2005},
    volume = {22},
    number = {3},
    month = {12},
    issn = {1367-4803},
    pages = {369-370},
    doi = {10.1093/bioinformatics/bti817},
    url = {https://doi.org/10.1093/bioinformatics/bti817},
  }