著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL
"Dragomir, Sever Silvestru",Inequalities for the numerical radius of linear operators in Hilbert spaces,,Springer,2013,SpringerBriefs in mathematics,,9783319014470,,https://cir.nii.ac.jp/crid/1130000796490984576