A Novel Four-Dimensional Hyperchaotic Four-Wing System With a Saddle-Focus Equilibrium.
Christos K. VolosJamal-Odysseas MaaitaSundarapandian VaidyanathanViet-Thanh PhamIoannis N. StouboulosIoannis M. KyprianidisPublished in: IEEE Trans. Circuits Syst. II Express Briefs (2017)