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
"Scheinerman, Edward R. and Ullman, Daniel H.",Fractional graph theory : a rational approach to the theory of graphs,,Wiley,1997,Wiley-Interscience series in discrete mathematics and optimization,,0471178640,,https://cir.nii.ac.jp/crid/1130282273044872704