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)
Yohji AKAMA,A new order theory of set systems and better quasi-orderings,Progress in informatics,13498614,Tokyo : Research Organization of Information and Systems,2012-03,,9,9-18,https://cir.nii.ac.jp/crid/1524232503222704768,https://doi.org/10.2201/niipi.2012.9.3