To cite package 'phom' in publications use:

Andrew Tausz, phom: Persistent Homology in R, Version 1.0.3, 2011. Available at CRAN http://cran.r-project.org.

Corresponding BibTeX entry:

  @Manual{,
    title = {phom: Persistent Homology in R},
    author = {Andrew Tausz},
    year = {2011},
    note = {Version 1.0.3},
    url = {http://www.stanford.edu/~atausz},
  }