1. Hadley G, Whitin T. M., 1964, “A Review of Alternative Approaches to Inventory Theory”, U S Gov. Research report RM-4185-PR, Doc. No. AD-605843. Rand Corp., Sept, pages 97-117
2. Edghill J., Towill, D.R., 1988, “Manufacturing System Performance - Frequency Response Revisited”, ISIR 5th Symposium on Inventories, Budapest, August.
3. “Industrial Dynamics Model Building of a Close-coupled Production Distribution System”;Olsmats;Engineering Costs and Production Economics,1988
4. “Industrial Case-study of the Dynamics and Sensitivity of a Close-coupled Production-Distribution System”;Edghill;International Journal of Production Research,1988
5. Edghill J., Towill D.R., 1988, “The Use of Systems Dynamics in Manufacturing Systems” By invitation to Institute of Measurement and Control Seminar on System Dynamics, October.