@inproceedings{2002-webquilt-vis,
  title = {What Did They Do? Understanding Clickstreams with the  WebQuilt Visualization System},
  author = {Sarah Waterson AND Jason I. Hong AND Tim Sohn AND Jeffrey Heer AND Tara Matthews AND James Landay},
  booktitle = {Advanced Visual Interfaces},
  year = {2002},
  pages = {94--102},
  url = {http://vis.stanford.edu/papers/webquilt-vis}
}