1. Anishchenko, V.S., Astakhov, V.V., Neiman, A.B., Vadivasova, T.E., Schimansky-Geier, L.: Nonlinear Dynamics of Chaotic and Stochastic Systems. Springer, Berlin (2002)
2. Balanov, A.G., Janson, N.B., Postnov, D.E., Sosnovtseva, O.: Synchronization: From Simple to Complex. Springer, Berlin (2009)
3. Pikovsky, A., Rosenblum, M., Kurths, J.: Synchronization: A Universal Concept in Nonlinear Science. Cambridge University Press, Cambridge (2003)