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 "Cho, Ilwoo",Constructive analysis of semicircular elements : from orthogonal projections to semicircular elements,,C&H/CRC Press,2023,Monographs and research notes in mathematics,,9781032448336,,https://cir.nii.ac.jp/crid/1130296486347461889