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
"Fet, A. I. (Abram Ilʹich)",Variational problems on closed manifolds,,American Mathematical Society,1953,American Mathematical Society translation,,,,https://cir.nii.ac.jp/crid/1130000796816236288