Gal Lavee Artyom Borzin Ehud Rivlin Michael Rudzsky Building Petri Nets from Video Event Ontologies. 442-451 2007 conf/isvc/2007-1 ISVC (1) http://dx.doi.org/10.1007/978-3-540-76858-6_44 db/conf/isvc/isvc2007-1.html#LaveeBRR07