@inproceedings{hannak2013measuring,
  title={Measuring personalization of web search},
  author={Hannak, Aniko and Sapiezynski, Piotr and Molavi Kakhki, Arash and Krishnamurthy, Balachander and Lazer, David and Mislove, Alan and Wilson, Christo},
  booktitle={Proceedings of the 22nd International Conference on World Wide Web},
  pages={527--538},
  year={2013}
}