Dumitru Roman Jos de Bruijn Adrian Mocan Holger Lausen John Domingue Christoph Bussler Dieter Fensel WWW: WSMO, WSML, and WSMX in a Nutshell. 516-522 2006 conf/aswc/2006 ASWC http://dx.doi.org/10.1007/11836025_49 db/conf/aswc/aswc2006.html#RomanBMLDBF06