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O'Malley Faculty Page. UCSC https://history.ucsc.edu/faculty/profiles/singleton.php?&singleton=true&cruz_id=gomalley. Retrieved 15 April 2017.  Missing or empty

2005.  Ramona Turner (May 22, 2009). "Bomb scare closes main entrance to UCSC". Santa Cruz Sentinel. Santa Cruz.  "Detonated 'bomb' turns out to be box