1. Yu. M. Romanovskii, N. V. Stepanova, and D. S. Chernavskii, Mathematical Modeling in Biophysics (Institute of Computer Investigations, Moscow-Izhevsk, 2003) [in Russian].
2. B. Ermentrout and D. Pinto, SIAM News 40, No. 2 (2007).
3. J. L. Lancaster, E. H. Hellen, and E. M. Leise, Am. J. Phys. 78, 56 (2010).
4. A. Yu. Loskutov and A. S. Mikhailov, Principles of the Theory of Complex Systems (Institute of Computer Investigations, Moscow-Izhevsk, 2007) [in Russian].
5. J. G. Alford and G. Auchmuty, J. Math. Biol. 53, 797 (2006).