Marjan Sirjani Ali Movaghar Amin Shali Frank S. de Boer Modeling and Verification of Reactive Systems using Rebeca. 385-410 2004 63 Fundam. Inform. 4 http://iospress.metapress.com/openurl.asp?genre=article&issn=0169-2968&volume=63&issue=4&spage=385 db/journals/fuin/fuin63.html#SirjaniMSB04