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) Itoh Jin-ichi and Vîlcu Costin,Every graph is a cut locus,Journal of the Mathematical Society of Japan,00255645,一般社団法人 日本数学会,2015,67,3,1227-1238,https://cir.nii.ac.jp/crid/1390001205115850240,https://doi.org/10.2969/jmsj/06731227