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Helms, Ronald; Costanza, S.E.; Johnson, Nicholas (2012-02-01). "Crouching tiger or phantom dragon? Examining the discourse on global cyber-terror". Security Journal. 25 (1): 57–75. doi:10.1057/sj.2011.6. ISSN1743-4645. S2CID154538050.
Kilburn, John C. Jr.; Costanza, S.E.; Metchik, Eric; Borgeson, Kevin (2011). "Policing Terror Threats and False Positives: Employing a Signal Detection Model to Examine Changes in National and Local Policing Strategy between 2001–2007". Security Journal. 24: 19–36. doi:10.1057/sj.2009.7. S2CID153825273.
Pauwels, Lieven; Schils, Nele (2014). "Differential Online Exposure to Extremist Content and Political Violence: Testing the Relative Strength of Social Learning and Competing Perspectives". Terrorism and Political Violence. 28: 1–29. doi:10.1080/09546553.2013.876414. S2CID143691795.