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 Hahn, Geňa and Sabidussi, Gert and Woodrow, Robert E. and NATO Advanced Research Workshop on Cycles and Rays: Basic Structures in Finite and Infinite Graphs and North Atlantic Treaty Organization. Scientific Affairs Division Cycles and rays Kluwer Academic Publishers 1990 NATO ASI series ser. C . Mathematical and physical sciences ; v. 301 0792305973 https://ci.nii.ac.jp/ncid/BA0790562X