To cite the dr package in publications use:

Sanford Weisberg (2002). Dimension Reduction Regression in R. Journal of Statistical Software, 7, 1-22 URL: http://www.jstatsoft.org

Corresponding BibTeX entry:

  @Article{,
    title = {Dimension reduction regression in R},
    author = {S. Weisberg},
    journal = {Journal of Statistical Software},
    volume = {7},
    number = {1},
    pages = {1--22},
    year = {2002},
  }