@inproceedings{2011-analysis-social-topologies,
  title = {An Algorithm and Analysis of Social Topologies from Email and Photo Tags},
  author = {T. J. Purtell AND Diana MacLean AND Seng Keat Teh AND Sudheendra Hangal AND Monica S. Lam AND Jeffrey Heer},
  booktitle = {Workshop on Social Network Mining \& Analysis, ACM KDD},
  year = {2011},
  url = {http://vis.stanford.edu/papers/analysis-social-topologies}
}