E. Demidova, and W. Nejdl.. Proceedings of the Proceedings of the "Web Search Technology - from Search to Semantic Search" Workshop, in conjunction with the 1st Asian Semantic Web Conference (ASWC 2006), September 3-7, 2006, Beijing, China., (2006)
J. Tane, W. Siberski, W. Nejdl, and B. Simon. Proc. of the First International Semantic Web Conference 2002 (ISWC 2002), June 9-12 2002, Sardinia, Ital, volume 2342 of LNCS, page 236-249. Springer, (2002)