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Lemley, Mark; Levine, David S.; Post, David G. (December 19, 2011). "Don't Break the Internet". Stanford Law Review. Archived from the original on December 23, 2011. Retrieved December 21, 2011.
Letter from Floyd Abrams, to Chairman Leahy, Ranking Member Grassley, and Senator Hatch, (May 23, 2011), Letter of SupportArchived March 31, 2012, at the Wayback Machine (Retrieved June 23, 2011)
"SOPA vs PIPA vs OPEN". KeepTheWebOpen.com. Archived from the original on April 26, 2012. Retrieved December 21, 2011.
Lemley, Mark; Levine, David S.; Post, David G. (December 19, 2011). "Don't Break the Internet". Stanford Law Review. Archived from the original on December 23, 2011. Retrieved December 21, 2011.