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 "Agler, Jim and Lykova, Zinaida and Young, Nicholas","Geodesics, retracts, and the norm-preserving extension property in the symmetrized bidisc",,American Mathematical Society,2019,Memoirs of the American Mathematical Society,,9781470435493,,https://cir.nii.ac.jp/crid/1130282273088394496