"Declaration of Peter Biddle in support of plaintiffs"(PDF). RealNetworks, Inc. and RealNetworks Home Entertainment, Inc.'s Opposition to Motion for Preliminary Injunction. May 26, 2009. Archived(PDF) from the original on August 9, 2011. Retrieved March 26, 2011.
"Declaration of Peter Biddle in support of plaintiffs"(PDF). RealNetworks, Inc. and RealNetworks Home Entertainment, Inc.'s Opposition to Motion for Preliminary Injunction. May 26, 2009. Archived(PDF) from the original on August 9, 2011. Retrieved March 26, 2011.