Jan Demey Mustafa Jarrar Robert Meersman A Conceptual Markup Language That Supports Interoperability between Business Rule Modeling Systems. 19-35 2002 conf/coopis/2002 CoopIS/DOA/ODBASE http://link.springer.de/link/service/series/0558/bibs/2519/25190019.htm db/conf/coopis/coopis2002.html#DemeyJM02