1. J. Franklin, The formal sciences discover the philosopers’ stone, Studies in History and Philosophy of Science 25 (1994), 513–533.
2. H.A. Simon, The Sciences of the Artificial (MIT Press, Cambridge, MA, 1969; 3rd edn., 1996).
3. F.N. Trefethen, History of Operations Research, in J.F. McCloskey and F.N. Trefethen, eds, Operations Research for Management (Johns Hopkins Press, Baltimore, MD, 1954), vol. 1, 3–35.
4. C.D. Woolsey and H.S. Swanson, Operations Research for Immediate Application: A Quick and Dirty Manual (Harper & Row, New York, 1975).
5. R.C. Dorf and R.H. Bishop, Modern Control Systems (10th edn, Prentice Hall, Upper Saddle River, NJ, 2004).