Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Hirzebruch, Friedrich and Mayer, Karl Heinz","O (n)-Mannigfaltigkeiten, exotische Sphären und Singularitäten",,Springer-Verlag,1968,Lecture notes in mathematics,,,,https://cir.nii.ac.jp/crid/1130282272278047104