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"WWE Home Videos."Wrestle Mania 21. Los Angeles, California. April 3, 2005

"WWE Home Videos."Tombstone the History of the Undertaker. August 22, 2005

Leiker, Ken. WWE Unscripted. WWE. United Kingdom. 2003

Shaefer, AR. The Undertaker Pro Wrestler Mark Calloway, Mankato Minnesota. 2003

  Dan, Number one undertaker recource on the net December 19, 2005 Phenomforever.com