Solution and dynamics of a fractional-order 5-D hyperchaotic system with four wings Limin Zhang, Kehui Sun, Shaobo He, Huihai Wang and Yixin Xu Eur. Phys. J. Plus, 132 1 (2017) 31 Published online: 23 January 2017 DOI: 10.1140/epjp/i2017-11310-7