Wil M. P. van der Aalst Mathias Weske Dolf Grünbauer Case handling: a new paradigm for business process support. 129-162 2005 53 Data Knowl. Eng. 2 http://dx.doi.org/10.1016/j.datak.2004.07.003 db/journals/dke/dke53.html#AalstWG05