Elena Fersman Paul Pettersson Wang Yi Timed Automata with Asynchronous Processes: Schedulability and Decidability. 67-82 2002 conf/tacas/2002 TACAS http://link.springer.de/link/service/series/0558/bibs/2280/22800067.htm db/conf/tacas/tacas2002.html#FersmanPY02