5metro-goldwyn-mayer studios inc. v.gr okster,ltd.545 u.S.913(2005).
6Lital Helman, "Pull too hard and the ope may break:on the secondary liability of technology providers copyright infringement",Texas Intellectual Property Law Journal(Summer 2010).
7Paul Goldstein On Copyright,2007 Supplement,8:32.
8Lital Helman, "Pull too hard and the ope may break:on the secondary liabifity of technology providers copyright infringement",Texas Intellectual Property Law Journal(Summer 2010).
9Inre Charter Communications,393 F.3d 771(8th Cir. 2005).