Yan-Wu Wang Changyun Wen Yeng Chai Soh Zhi-Hong Guan Partial State impulsive Synchronization of a Class of Nonlinear Systems. 387-393 2009 19 I. J. Bifurcation and Chaos 1 http://dx.doi.org/10.1142/S0218127409022944 db/journals/ijbc/ijbc19.html#WangWSG09