Andreas Wombacher Roel Wieringa Willem Jonker Predrag Knezevic Stanislav Pokraev Requirements for Secure Logging of Decentralized Cross-Organizational Workflow Executions. 526-536 2005 conf/otm/2005-1 OTM Workshops http://dx.doi.org/10.1007/11575863_72 db/conf/otm/otm2005-1.html#WombacherWJKP05