A. Tjoa, R. Wagner, A. Andjomshoa, F. Shayeganfar:
"Semantic Web: Challenges and New Requirements";
Talk: DEXA Workshops, Copenhagen, Denmark; 2005-08-22 - 2005-08-26; in: "DEXA Workshops 2005", IEEE Computer Society Press, (2005), 1160 - 1163.
http://aleph.ub.tuwien.ac.at/F?base=tuw01&func=find-c&ccl_term=AC05936476