Coexistence of multiple attractors for an incommensurate fractional-order chaotic system Chenguang Ma, Jun Mou, Jian Liu, Feifei Yang, Huizhen Yan and Xiu Zhao Eur. Phys. J. Plus, 135 1 (2020) 95 Published online: 23 January 2020 DOI: 10.1140/epjp/s13360-019-00093-0