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 "広田, 良吾 and 永井, 敦 and Nimmo, Jon and Gilson, Claire",The direct method in soliton theory,,Cambridge University Press,2004,Cambridge tracts in mathematics,,0521836603,,https://cir.nii.ac.jp/crid/1130282270797241088