Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) RYU SANG-UK and YAGI ATSUSHI,OPTIMAL FEEDBACK CONTROLS FOR KELLER-SEGEL EQUATIONS,Scientiae Mathematicae japonicae,13460862,,2001-05-01,53,3,441-457,https://cir.nii.ac.jp/crid/1570572699837041664,