Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
TAKAHASHI W.,Existence theorems generalizing fixed point theorems for multivalued mappings,Fixed Point Theory and Applications,,"Longman Scientific & Technical ; John Wiley & Sons, Inc",1991,,,397-406,https://cir.nii.ac.jp/crid/1570572699685638784,