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
"WELCOM and Fiege, Ludger and Mühl, Gero and Wilhelm, Uwe (Uwe G.)","Electronic commerce : Second International Workshop, WELCOM 2001, Heidelberg, Germany, November 16-17, 2001 : proceedings",,Springer,2001,Lecture notes in computer science,,354042878X,,https://cir.nii.ac.jp/crid/1130000794358182656