1. Chung, C.H. and I.J. Chen, “A Systematic Assessment of the Value of Flexibility for an FMS”, Proceedings of the Third ORSA/TIMS Conference on Flexible Manufacturing Systems, (K.E. Stecke and R. Suri, eds.), Elsevier Science Publishers B.V., Amsterdam, 27–32 (1989).
2. “Flexibility and Productivity in Complex Production Processes”;Gustavsson;International Journal of Production Research,1984
3. “Flexibility - A Condition for Effective Production Systems”;Zelenovic;International Journal of Production Research,1982
4. “Classification of Flexible Manufacturing Systems”;Browne;The FMS Magazine,1984
5. Falkner, C.H., “Flexibility in Manufacturing Plants”, Proceedings of the Second ORSA/TIMS Conference on Flexible Manufacturing Systems, (K.E. Stecke and R. Suri, eds.), Elsevier Science Publishers B.V., Amsterdam, 95–105 (1986).