Dynamics of three Toda oscillators with nonlinear unidirectional couplingA. Dvorak, P. Kuzma, P. Perlikowski, V. Astakhov and T. KapitaniakEur. Phys. J. Special Topics, 222 10 (2013) 2429-2439DOI: https://doi.org/10.1140/epjst/e2013-02027-6