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 "Udriște, Constantin",Convex functions and optimization methods on Riemannian manifolds,,Kluwer Academic Publishers,1994,Mathematics and its applications,,0792330021,,https://cir.nii.ac.jp/crid/1130000796354850432