P. Hitzler, and D. Vrandecic. Proceedings of the 4th International Semantic Web Conference (ISWC 2005), November 6-10, 2005, Galway, Ireland, volume 3729 of Lecture Notes in Computer Science, page 383-397. Springer, Berlin--Heidelberg, Germany, (2005)
P. Groot, H. Stuckenschmidt, and H. Wache. The Semantic Web: Research and Applications, Second European, volume 3532 of Lecture Notes in Computer Science, page 318-332. Springer, (2005)
H. Wache, P. Groot, and H. Stuckenschmidt. Web Information Systems Engineering - WISE 2005 Workshops,, volume 3807 of Lecture Notes in Computer Science, page 245-254. Springer, (2005)