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
"Feilner, Markus and Graf, Norbert",Beginning OpenVPN 2.0.9 : build and integrate virtual private networks using OpenVPN,,Packt Publishing,2009,From technologies to solutions,,9781847197061,,https://cir.nii.ac.jp/crid/1130282270318915328