1. A short history of CAD data transfer standards;Wilson;IEEE Computer Graphics and Applications,1987
2. Developing a feature based system for CAD/CAM integration;Chen;Computers and Industrial Engineering,1988
3. Knowledge integrated product modeling for design and manufacture;Krause,1989
4. Product modeling for flexible integration of design and manufacturing activities;Kimura,1989
5. Feature-based product modeling for process planning;Mantyla,1989