著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL
"Gelʹfond, A. O. (Aleksandr Osipovich)",Calculus of finite differences,,Hindustan Pub.,1971,International monographs on advanced mathematics and physics,,,,https://cir.nii.ac.jp/crid/1130282271266336384