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)
Ernest Michael,Convex Structures and Continuous Selections,Canadian Journal of Mathematics,0008-414X,Canadian Mathematical Society,1959,11,,556-575,https://cir.nii.ac.jp/crid/1362544420574905216,https://doi.org/10.4153/cjm-1959-051-9