1. S. Beckerman, The equations of war. J. Curr. Anthropol. 32(5), 636–640 (1991)
2. E. Bruce Nauman, Chemical Reactor Design, Optimization and Scaleup (Wiley, Hoboken, 2008)
3. S. Busenberg, M. Martelli, Differential Equations Models in Biology, Epidemiology and Ecology, Proceedings of a Conference held in Claremont California, 13–16 January 1990 (Springer, 1991)
4. D.L. DeAngelis, S.M. Bartell, A.L. Brenkert, Effects of nutrient recycling and food-chain length on resilience. Am. Nat. 134(5), 778–805 (1989)
5. H.I. Freedman, Deterministic Mathematical Models in Population Ecology. Monograph Textbooks Pure Applied Mathematics, vol. 57 (Marcel Dekker, New York, 1980)