A novel memristive time–delay chaotic system without equilibrium pointsV.-T. Pham, S. Vaidyanathan, C.K. Volos, S. Jafari, N.V. Kuznetsov and T.M. HoangEur. Phys. J. Special Topics, 225 1 (2016) 127-136DOI: https://doi.org/10.1140/epjst/e2016-02625-8