H. Peter, H. Sack, and C. Beckstein. in Proc. of the 1st Semantic Authoring and Annotation Workshop (SAAW2006), Athens (GA), USA, (2006)location=Athens (GA), USA, date=2006.
H. Sack, and J. Waitelonis. in Proc. of 5. e-Learning Fachtagung Informatik, DeLFI 2007, volume P-111 of Lecture Notes in Informatics (LNI), Bonn, Köllen, (2007)
R. Landefeld, and H. Sack. in Proc. of SABRE Conference on Social Semantic Web (CSSW 2007),, volume P-113 of GI-Edition - Lecture Notes in Informatics (LNI), (2007)
M. Quasthoff, H. Sack, and C. Meinel. n Proc. of the 2007 IEEE / WIC /ACM Int. Conf. on Web Intelligence (WI 2007), (2007)location=Silicon Valley, date=2007.
S. Repp, J. Waitelonis, H. Sack, and C. Meinel. in Proc. of 8 th Int. Conf. on Intelligent Data Engineering and Automated Learning (IDEAL 2007), (2007)
S. Linckels, H. Sack, and C. Meinel. in Proc. Workshop on Service Matchmaking and Resource Retrieval (SMR 2007) at the 6 th International Semantic Web Conference (ISWC + ASWC 2007), (November 2007)