TY - Journal of Shandong University(Engineering Science) A1 - ZHONG Qing-Chang T1 - Recent results on H∞ control of time-delay systems using  frequency-domain approaches Y1 - 2009-06-16 JF - Journal of Shandong University(Engineering Science) JO - Journal of Shandong University(Engineering Science) SP - 22 EP - 30 VL - 39 IS - 3 UR - http://gxbwk.njournal.sdu.edu.cn N1 - ER -