Danny Weyns Elke Steegmans Tom Holvoet Integrating Free-Flow Architectures with Role Models Based on Statecharts. 104-120 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3390&spage=104 2004 conf/selmas/2004 SELMAS db/conf/selmas/selmas2004.html#WeynsSH04