J. Broekstra, A. Kampman, and F. van Harmelen. The Semantic Web -- ISWC 2002: First International Semantic Web Conference Sardinia, Italy, volume 2342 of Lecture Notes in Computer Science, Springer, Berlin, (2002)
B. Kadar, P. Szeredi, and G. Lukacsy. Proceedings of the 3rd International Workshop on Applications of Logic Programming to the (Semantic) Web and Web Services (ALPSWS2008), Udine, Italy, volume 434 of CEUR Workshop Proceedings, Sun SITE Central Europe, (2009)
S. Lynden, I. Kojima, A. Matono, and Y. Tanimura. Databases in Networked Information Systems: 6th International Workshop, DNIS 2010, Aizu-Wakamatsu, Japan, (2010)