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) Kishimoto Kazuo,Finite Posets P and P-galois Extensions of Rings,Mathematical Journal of Okayama University,0030-1566,"Department of Mathematics, Faculty of Science, Okayama University",1992-01,34,1,21-47,https://cir.nii.ac.jp/crid/1390290699601556736,https://doi.org/10.18926/mjou/33154