To cite CrypticIBDcheck in publications use:

Nembot-Simo A, Graham J, McNeney B (2013). “CrypticIBDcheck: an R package for checking cryptic relatedness in nominally unrelated individuals.” Source Code for Biology and Medicine, 8:5. http://www.scfbm.org/content/8/1/5.

Corresponding BibTeX entry:

  @Article{,
    title = {CrypticIBDcheck: an R package for checking cryptic
      relatedness in nominally unrelated individuals.},
    author = {A. Nembot-Simo and J. Graham and B. McNeney},
    journal = {Source Code for Biology and Medicine},
    volume = {8:5},
    year = {2013},
    url = {http://www.scfbm.org/content/8/1/5},
  }