Fisher, Brian; Iseki, Kiyoshi A generalization of a common fixed point theorem. (English) Zbl 0714.54042 Math. Jap. 35, No. 6, 1013-1017 (1990). MSC: 54H25 54E50 PDFBibTeX XMLCite \textit{B. Fisher} and \textit{K. Iseki}, Math. Japon. 35, No. 6, 1013--1017 (1990; Zbl 0714.54042)
Fisher, Brian; Iséki, Kiyoshi Fixed points for set-valued mappings on complete and compact metric spaces. (English) Zbl 0535.54027 Math. Jap. 28, 639-646 (1983). Reviewer: D.E.Sanderson MSC: 54H25 54C60 PDFBibTeX XMLCite \textit{B. Fisher} and \textit{K. Iséki}, Math. Japon. 28, 639--646 (1983; Zbl 0535.54027)