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)
Takashi Aoki and Masaki Kashiwara and Takahiro Kawai,On a class of linear differential operators of infinite order with finite index,Advances in Mathematics,0001-8708,Elsevier BV,1986-11,62,2,155-168,https://cir.nii.ac.jp/crid/1363670320083016704,https://doi.org/10.1016/0001-8708(86)90098-8