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 "Schürmann, Achill","Computational geometry of positive definite quadratic forms : polyhedral reduction theories, algorithms, and applications",,American Mathematical Society,2009,University lecture series,,9780821847350,,https://cir.nii.ac.jp/crid/1130000797322840320