Henk Jan Pels Jan Goossenaerts A Conceptual Modeling Technique for Discrete Event Simulation of Operational Processes. 305-312 2007 APMS http://dx.doi.org/10.1007/978-0-387-74157-4_36 conf/ifip5-7/2007apms db/conf/ifip5-7/apms2007.html#PelsG07