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) IZUMINO SAICHI and NAKAMURA NOBORU,LOWNER-HEINZ THEOREM AND OPERATOR MEANS,Scientiae Mathematicae japonicae,13460862,,2002-05-01,55,3,623-626,https://cir.nii.ac.jp/crid/1570854174813937280,