@inproceedings{yom2012effect,
  title={The effect of links on networked user engagement},
  author={Yom-Tov, Elad and Lalmas, Mounia and Dupret, Georges and Baeza-Yates, Ricardo and Donmez, Pinard and Lehmann, Janette},
  booktitle={Proceedings of the 21st international conference companion on World Wide Web},
  pages={641--642},
  year={2012},
  organization={ACM}
}