Herbert Weber Hartmut Ehrig Wolfgang Reisig Alexander Borusan Sabine Lembke Juliane Dehnert Michael Weber Axel Martens Julia Padberg Claudia Ermel Anilda Qemali The Petri Net Baukasten of the DFG Forschergruppe PETRI NET TECHNOLOGY. 1-21 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2472&spage=1 2003 conf/dfg/2003 Petri Net Technology for Communication-Based Systems db/conf/dfg/petri2003.html#WeberERBLDWMPEQ03