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
"藤重, 悟",Submodular functions and optimization,2nd ed,Elsevier,2005,Annals of discrete mathematics,,0444520864,,https://cir.nii.ac.jp/crid/1130282269360985600