Patricia Bouyer Ulrich Fahrenberg Kim Guldstrand Larsen Nicolas Markey Jirí Srba Infinite Runs in Weighted Timed Automata with Energy Constraints. 33-47 2008 FORMATS http://dx.doi.org/10.1007/978-3-540-85778-5_4 conf/formats/2008 db/conf/formats/formats2008.html#BouyerFLMS08