著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI) TAKAHASHI W.,Nonlinear Functional Analysis-,Fixed Point Theory and its Applications,,Yokohama Publ.,2000,,,,https://cir.nii.ac.jp/crid/1570009749883629952,