Massimo Paolucci Gregor Broll John Hamard Enrico Rukzio Matthew Wagner Albrecht Schmidt Bringing Semantic Services to Real-World Objects. 35-49 2008 4 Int. J. Semantic Web Inf. Syst. 1 http://www.igi-pub.com/articles/details.asp?ID=7836 db/journals/ijswis/ijswis4.html#PaolucciBHRWS08