Weihua Tian Huaguang Zhang Ling Jiang Guaranteed Cost Control for a Class of Fuzzy Descriptor Systems with Time-Varying Delay. 751-759 2007 ICFIE http://dx.doi.org/10.1007/978-3-540-71441-5_81 conf/icfie/2007 db/conf/icfie/icfie2007.html#TianZJ07