1. GENSYM Corporation, 1995, G2 V.4.0 manual.
2. An agent-based Environment for operational design;Betres,1997
3. A multi-dimensional object-oriented model for chemical engineering;Lu,1995
4. A generic multi-dimensional concurrent tasking activity model;Lu,1996
5. A hyper-manager for a computer integrated concurrent process engineering environment;Lu;Computers and Chem. Eng.,1996