To cite clustrd in publications use:

Markos A, Iodice D'Enza A, van de Velden M (2019). “Beyond Tandem Analysis: Joint Dimension Reduction and Clustering in R.” Journal of Statistical Software, 91(10), 1–24. doi:10.18637/jss.v091.i10.

Corresponding BibTeX entry:

  @Article{,
    title = {Beyond Tandem Analysis: Joint Dimension Reduction and
      Clustering in {R}},
    author = {Angelos Markos and Alfonso {Iodice D'Enza} and Michel
      {van de Velden}},
    journal = {Journal of Statistical Software},
    year = {2019},
    volume = {91},
    number = {10},
    pages = {1--24},
    doi = {10.18637/jss.v091.i10},
  }