Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Dan Peng and Xinping Guan,H ∞ filtering of 2-D discrete state-delayed systems,Multidimensional Systems and Signal Processing,0923-6082,Springer Science and Business Media LLC,2008-08-01,20,3,265-284,https://cir.nii.ac.jp/crid/1363107369766800256,https://doi.org/10.1007/s11045-008-0064-1