webpage http://dx.doi.org/10.1145/2740908.2742743 http://www.scopus.com/inward/record.url?eid=2-s2.0-84968677352&partnerID=MN8TOARS
published in Proceedings of the 24th International Conference on World Wide Web Journal Proceedings of the 24th International Conference on World Wide Web Proceedings WWW 2015 Companion - Proceedings of the 24th International Conference on World Wide Web Proceedings