著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) TAKAHASI SIN-EI,BOHMAN-KOROVKIN-WULBERT OPERATORS FROM A FUNCTION SPACE INTO A COMMUTATIVE C*-ALGEBRA FOR SPECIAL TEST FUNCTIONS,Tohoku Mathematical Journal, Second Series,0040-8735,東北大学大学院理学研究科数学専攻,1996,48,1,139-148,https://cir.nii.ac.jp/crid/1390001205114986752,https://doi.org/10.2748/tmj/1178225415