Dimitris Karagiannis Hans-Georg Fill Peter Höfferer Martin Nemetz Metamodeling: Some Application Areas in Information Systems. 175-188 2008 UNISCON http://dx.doi.org/10.1007/978-3-540-78942-0_19 conf/ista/2008 db/conf/ista/uniscon2008.html#KaragiannisFHN08