Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) "Toyoda, Masashi and Watanabe, Toshikazu",Kannan mapping theorems in partially ordered sets (Nonlinear Analysis and Convex Analysis),数理解析研究所講究録,1880-2818,京都大学数理解析研究所,2014-11,1923,,99-104,https://cir.nii.ac.jp/crid/1050001335843822336,