Shihong Ding Wei Xing Zheng 0001 New design method of sliding mode controller for a class of nonlinear second-order systems. 2784-2787 2014 ISCAS https://doi.org/10.1109/ISCAS.2014.6865751 conf/iscas/2014 db/conf/iscas/iscas2014.html#DingZ14