Reiko Heckel. Open Petri Nets as Semantic Model for Workflow Integration. In Hartmut Ehrig, Wolfgang Reisig, Grzegorz Rozenberg, Herbert Weber, editors, Petri Net Technology for Communication-Based Systems - Advances in Petri Nets. Volume 2472 of Lecture Notes in Computer Science, pages 281-294, Springer, 2003. [doi]
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