An agent-based approach for supporting cross-enterprise workflows. - Liangzhao Zeng; Anne H. H. Ngu; Boualem Benatallah; Milton O'Dell (ADC, 2001)

HiWorD: A Petri Net-Based Hierarchical Workflow Designer. - Boualem Benatallah; Piotr Chrzastowski-Wachtel; Rachid Hamadi; Milton O'Dell; Adi Susanto (ACSD, 2003)

A Top-Down Petri Net-Based Approach for Dynamic Workflow Modeling. - Piotr Chrzastowski-Wachtel; Boualem Benatallah; Rachid Hamadi; Milton O'Dell; Adi Susanto (Business Process Management, 2003)