著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI)
RATNASAMY L.,Free Riding : A new challenge to peer-to-peer file sharing systems,"HICSS, 2003",,,2003,,,,https://cir.nii.ac.jp/crid/1570854175867985408,