de Leeuw J, Mair P (2009). “Gifi Methods for Optimal Scaling in R: The Package homals.” Journal of Statistical Software, 31. doi:10.18637/jss.v031.i04.

Corresponding BibTeX entry:

  @Article{,
    title = {Gifi Methods for Optimal Scaling in R: The Package
      homals},
    author = {Jan {de Leeuw} and Patrick Mair},
    journal = {Journal of Statistical Software},
    year = {2009},
    page = {1--20},
    volume = {31},
    issue = {4},
    doi = {10.18637/jss.v031.i04},
  }