To cite ade4TkGUI in publications use this reference:

Thioulouse, J. and Dray, S. (2007): Interactive Multivariate Data Analysis in R with the ade4 and ade4TkGUI Packages. Journal of Statistical Software. 22(5): 1-14.

Corresponding BibTeX entry:

  @Article{,
    title = {Interactive Multivariate Data Analysis in R with the ade4
      and ade4TkGUI Packages},
    author = {J. Thioulouse and S. Dray},
    journal = {Journal of Statistical Software},
    year = {2007},
    volume = {22},
    pages = {1-14},
    number = {5},
  }