Tudor Groza Siegfried Handschuh Knud Möller Stefan Decker KonneXSALT: First Steps Towards a Semantic Claim Federation Infrastructure. 80-94 2008 ESWC http://dx.doi.org/10.1007/978-3-540-68234-9_9 conf/esws/2008 db/conf/esws/eswc2008.html#GrozaHMD08