F. Abel, E. Herder, I. Marenzi, W. Nejdl, und S. Zerr. 2nd Annual Workshop on Search in Social Media (SSM '09), co-located with ACM SIGIR 2009 Conference on Information Retrieval, Boston, USA, (Juli 2009)
F. Abel, N. Henze, und D. Krause. WEBIST 2009 - Proceedings of the Fifth International Conference
on Web Information Systems and Technologies, Lisbon, Portugal,
March 23-26, 2009, Seite 167-174. INSTICC Press, (2009)
F. Abel, M. Baldoni, C. Baroglio, N. Henze, D. Krause, und V. Patti. HYPERTEXT 2009, Proceedings of the 20th ACM Conference on
Hypertext and Hypermedia, Torino, Italy, June 29 - July
1, 2009, Seite 209-218. ACM, (2009)
F. Abel, E. Herder, P. Kärger, D. Olmedilla, und W. Siberski. Creating New Learning Experiences on a Global Scale, Second
European Conference on Technology Enhanced Learning, EC-TEL
2007, Crete, Greece, September 17-20, 2007, Proceedings, Volume 4753 von Lecture Notes in Computer Science, Seite 143-157. Springer, (2007)