P. Heymann, D. Ramage, and H. Garcia-Molina. Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval, page 531--538. New York, NY, USA, ACM, (2008)
E. Lacic, D. Kowald, P. Seitlinger, C. Trattner, and D. Parra. Hypertext 2014 Extended Proceedings Late-breaking Results, Doctoral Consortium and Workshop Proceedings of the 25th ACM Hypertext and Social Media Conference (Hypertext 2014) Santiago, Chile, September 1-4, 2014., volume 1210 of CEUR Workshop Proceedings, CEUR-WS.org, (2014)
P. Seitlinger, D. Kowald, C. Trattner, and T. Ley. Proceedings of the 22nd ACM international conference on Conference on information &\#38; knowledge management, page 2381--2386. New York, NY, USA, ACM, (2013)
P. Seitlinger, T. Ley, and D. Albert. Open and Social Technologies for Networked Learning, volume 395 of IFIP Advances in Information and Communication Technology, Springer Berlin Heidelberg, (2013)
P. Chirita, S. Costache, W. Nejdl, and S. Handschuh. WWW '07: Proceedings of the 16th International Conference on World Wide Web, page 845--854. New York, NY, USA, ACM, (2007)
P. Heymann, D. Ramage, and H. Garcia-Molina. SIGIR '08: Proceedings of the 31st annual international ACM SIGIR conference on Research and development in information retrieval, page 531--538. New York, NY, USA, ACM, (2008)
P. Heymann, D. Ramage, and H. Garcia-Molina. SIGIR '08: Proceedings of the 31st Annual International ACM SIGIR Conference on Research and Development in Information Retrieval, page 531--538. New York, NY, USA, ACM, (2008)