Synchronization of Uncertain Fractional-Order Duffing-Holmes Chaotic   System via Sliding Mode Control
  In this paper, a sliding mode controller is designed to synchronize a chaotic fractional-order system. To construct a corrective control input, a saturation function sat(.), with a modified sliding surface is proposed. Finally, Chaos in the Duffing-Holmes system with fractional orders is investigated, and a numerical simulation (synchronizing fractional-order Duffing-Holmes _ Duffing-Holmes system) are presented to show the effectiveness of the proposed controller. 
S. H. Hosseinnia, R. Ghaderi, A. Ranjbar N., S. Momani
nlin.CD