Gerti Kappel Horst Kargl Gerhard Kramler Andrea Schauerhuber Martina Seidl Michael Strommer Manuel Wimmer Matching Metamodels with Semantic Systems - An Experience Report. 38-52 2007 conf/btw/2007w BTW Workshops db/conf/btw/btw2007w.html#KappelKKSSSW07