Hehong Zhang, Yunde Xie, Gaoxi Xiao, Chao Zhai, Zhiqiang Long, Huangwei Kang, Junqing Tang. Tracking Differentiator via Time Criterion. In 2018 Annual American Control Conference, ACC 2018, Milwaukee, WI, USA, June 27-29, 2018. pages 3514-3519, IEEE, 2018. [doi]