title: the wasa2 object-oriented workflow management system sigmod conference 1999. authors: mathias weske , gottfried vossen. venue: nan. year: nan
title: agflow : agent-based cross-enterprise workflow management system very large data bases. authors: liangzhao zeng , boualem benatallah , phuong nguyen , anne h. h. ngu. venue: nan. year: 2001.0