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)
Ahsan Javed and Takahashi Michihiro,Pure spectrum of a monoid with zero,Kobe journal of mathematics,02899051,神戸大学,1989-12,6,2,163-181,https://cir.nii.ac.jp/crid/1571698601700142976,