To cite support.CEs in publications use:

Hideo Aizaki (2012). Basic Functions for Supporting an Implementation of Choice Experiments in R. Journal of Statistical Software, Code Snippets, 50(2), 1-24. URL http://www.jstatsoft.org/v50/c02/.

Corresponding BibTeX entry:

  @Article{,
    title = {Basic Functions for Supporting an Implementation of Choice
      Experiments in {R}},
    author = {Hideo Aizaki},
    journal = {Journal of Statistical Software, Code Snippets},
    year = {2012},
    volume = {50},
    number = {2},
    pages = {1--24},
    url = {http://www.jstatsoft.org/v50/c02/},
  }