To cite the Iboot package in publications use:

Lunardon, N. (2013). R package 'Iboot': iterated bootstrap tests and confidence sets (version 0.1-1). URL http://cran.r-project.org/web/packages/Iboot/index.html

Corresponding BibTeX entry:

  @Manual{,
    title = {{R} package \texttt{Iboot}: iterated bootstrap tests and
      confidence sets. (version 0.1-1)},
    author = {N. Lunardon},
    address = {Universit\`a di Trieste, Italia},
    year = {2013},
    url = {http://cran.r-project.org/web/packages/Iboot/index.html},
  }