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
"Pogorelov, A. V. (Alekseĭ Vasilʹevich) and Kra, Irwin and Zaustinskiy, Eugene",Hilbert's fourth problem,,V.H. Winston,1979,Scripta series in mathematics,,0470267356,,https://cir.nii.ac.jp/crid/1130000795166602752