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
"Babbitt, Donald G. and Varadarajan, V. S.",Deformations of nilpotent matrices over rings and reduction of analytic families of meromorphic differential equations,,American Mathematical Society,1985,Memoirs of the American Mathematical Society,,0821823264,,https://cir.nii.ac.jp/crid/1130000795302237184