To cite ergm.graphlets in publications use:

Omer Nebil Yaveroglu, Sean M. Fitzhugh, Maciej Kurant, Athina Markopoulou, Carter T. Butts, Natasa Przulj (2013). ergm.graphlets: A Package for ERG Modeling Based on Graphlet Statistics Journal of Statistical Software, 1(1), 1-2. URL http://www.jstatsoft.org/.

Corresponding BibTeX entry:

  @Article{,
    title = {{ergm.graphlets}: A Package for ERG Modeling Based on
      Graphlet Statistics},
    author = {Omer N. Yaveroglu and Sean M. Fitzhugh and Maciej Kurant
      and Athina Markopoulou and Carter T. Butts and Natasa Przulj},
    journal = {Journal of Statistical Software},
    year = {2013},
    volume = {1},
    number = {1},
    pages = {1--2},
    url = {http://www.jstatsoft.org/},
  }