Jussi Vanhatalo Hagen Völzer Frank Leymann Simon Moser Automatic Workflow Graph Refactoring and Completion. 100-115 2008 ICSOC http://dx.doi.org/10.1007/978-3-540-89652-4_11 conf/icsoc/2008 db/conf/icsoc/icsoc2008.html#VanhataloVLM08