Abooee, A., Jahed Motlagh, M. R., Rahmani, Z. (2010) ‘Design of Proportional-Integral Sliding Mode Controllers for Hyperchaotic Systems in the Presence of Uncertainty, Disturbance and Nonlinear Control Inputs’, Nashriyyah -i Muhandisi -i Barq va Muhandisi -i Kampyutar -i Iran, 8(4), pp. 275-283. doi: