Coexistence of multiple attractors for an incommensurate fractional-order chaotic systemChenguang Ma, Jun Mou, Jian Liu, Feifei Yang, Huizhen Yan and Xiu ZhaoEur. Phys. J. Plus, 135 1 (2020) 95DOI: https://doi.org/10.1140/epjp/s13360-019-00093-0