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 "Babenko, Konstantin Ivanovich",The theory of extremal problems for univalent functions of class S,,American Mathematical Society,1975,Proceedings of the Steklov Institute of Mathematics,,0821830015,,https://cir.nii.ac.jp/crid/1130000797712548224