Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Hiai Fumio,Weakly Mixing Properties of Semigroups of Linear Operators,"Research reports on information sciences. Ser. A, Mathematical science",09122370,東京工業大学,1976-10,36,,1-32,https://cir.nii.ac.jp/crid/1574231876517405312,