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) Kanae Akaiwa and Masashi Iwasaki and Koichi Kondo,A tridiagonal matrix construction by the quotient difference recursion formula in the case of multiple eigenvalues,Pacific journal of mathematics for industry : PJMI,21886369,Fukuoka : Institute of Mathematics for Industry,2014,6,,21-29,https://cir.nii.ac.jp/crid/1520572360018588928,