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 ,"WIPO Worldwide Symposium on the Intellectual Property Aspects of Artificial Intelligence, Stanford University, Stanford (California), United States of America, March 25 to 27, 1991",,World Intellectual Property Organization,1991,WIPO publication,,9280503677,,https://cir.nii.ac.jp/crid/1130000796659516544