Pavel Krcál Leonid Mokrushin P. S. Thiagarajan Wang Yi Timed vs. Time-Triggered Automata. 340-354 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3170&spage=340 2004 conf/concur/2004 CONCUR db/conf/concur/concur2004.html#KrcalMTY04