Michael Sintek Ludger van Elst Gunnar Aastrand Grimnes Simon Scerri Siegfried Handschuh Knowledge Representation for the Distributed, Social SemanticWeb - Named Graphs, Graph Roles and Views in NRL. 2007 WoMO http://ceur-ws.org/Vol-315/paper8.pdf conf/kcap/2007womo db/conf/kcap/womo2007.html#SintekEGSH07