1. Murray, J.D.: Lectures on Nonlinear Differential Equation Models in Biology. Oxford University Press, Oxford (1977)
2. Murray, J.D.: Mathematical Biology. Springer, Heidelberg (2002)
3. Petrovskii, S., Li, B.L., Gross, L., Lenhart, S., Safer, H., Etheridge, A., Voit, E., Ranganathan, S., Maini, P.: Exactly Solvable Models of Biological Invasion. Chapman and Hall/CRC, New York (2006)
4. Vitanov, N.K., Jordanov, I.P., Dimitrova, Z.I.: On nonlinear population waves. Appl. Math. Comput. 215, 2950–2964 (2009)
5. Aronson, D.G.: The role of diffusion in mathematical population biology: Skellam revisited. In: Proceedings of the International Conference on Mathematics in Biology and Medicine. Lecture Notes in Biomathematics, vol. 57, pp. 2–6 (1985)