1. I. Balogh and G. Harless, “An Overview of the COMBAT XXI Simulation Model: A Model for the Analysis of Land and Amphibious Warfare,” in Proc. of 71st Military Operations Research Society Symposium, USMCB Quantico, VA, 2003. http://www.mors.org/publications/abstracts/71morss/wg31_abs.htm.
2. S. Bonder and L. W. Farrell, Development of Models for Defense Systems Planning. SRL 2147 TR70-2, Systems Research Laboratory, University of Michigan, Ann Arbor, MI, 1970.
3. C. Brosilow and B. Joseph, Techniques of Model-Based Control. Upper Saddle River, NJ, Prentice Hall PTR, 2002.
4. S. Brueckner, Return from the Ant: Synthetic Ecosystems for Manufacturing Control. Dr.rer.nat. Thesis at Humboldt University Berlin, Department of Computer Science, 2000. http://dochost.rz.hu-berlin.de/dissertationen/brueckner-sven-2000-06-21/PDF/Brueckner.pdf.
5. W. Collischonn and J. V. Pilar, “A direction dependent least-cost-path algorithm for roads and canals,” International Journal of Geographical Information Science, 14(4), pp. 397–406, 2000.