1. Periyar Maniammai Institute of Science and Technology, Vallam, Thanjavur 613 403, India
2. Laboratory of Complex Systems Modelling and Control, Faculty of Computer Science, National Research University, High School of Economics, Moscow 109 028, Russia
3. Centre for Nonlinear Systems, Chennai Institute of Technology, Chennai 600 044, Tamilnadu, India
4. Department of Mathematics, Faculty of Science and Technology, Phuket Rajabhat University, Phuket 83000, Thailand
5. Eastern Michigan Joint College of Engineering, Beibu Gulf University, Qinzhou 535 011, P. R. China