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From mercenaries to market: The rise and regulation of private military companies S Chesterman, C Lehnardt Oxford University Press, USA, 2007 | 308 | 2007 |
Beyond al-Qaeda: Part 1, the global jihadist movement A Rabasa, P Chalk, K Cragin, SA Daly, HS Gregg Rand Corporation, 2002 | 194 | 2002 |
PMCs, myths and mercenaries: The debate on private military companies KA O'Brien The RUSI Journal 145 (1), 59-64, 2000 | 132 | 2000 |
Military‐advisory groups and African security: Privatized peacekeeping? KA O'Brien International Peacekeeping 5 (3), 78-105, 1998 | 114 | 1998 |
Intelligence and national security: The secret world of spies: An anthology LK Johnson, JJ Wirtz (No Title), 2008 | 110* | 2008 |
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The new terrorism: anatomy, trends and counter-strategies A Tan, K Ramakrishna Singapore: Times Academic/Eastern Universities Press 2003, 2003 | 78 | 2003 |
The science of public messages for suicide prevention: A workshop summary DA Chambers, JL Pearson, K Lubell, S Brandon, K O'brien, J Zinn Suicide and Life-Threatening Behavior 35 (2), 134-145, 2005 | 77 | 2005 |
Europe confronts terrorism K Von Hippel Palgrave Macmillan, 2005 | 71 | 2005 |
Private military companies and African security 1990-98 K O’Brien Mercenaries: An African Security Dilemma 43, 2000 | 71 | 2000 |
The South African intelligence services: from apartheid to democracy, 1948-2005 KA O'Brien Routledge, 2010 | 70 | 2010 |
Warlords in international Relations PB Rich Springer, 2016 | 69 | 2016 |
What should and what should not be regulated? KA O'Brien From mercenaries to market: the rise and regulation of private military …, 2009 | 62 | 2009 |
The globalization of intelligence since 9/11: frameworks and operational parameters A Svendsen Cambridge Review of International Affairs 21 (1), 129-144, 2008 | 60 | 2008 |
Beyond al-Qaeda: Part 2, the outer rings of the terrorist universe A Rabasa, P Chalk, K Cragin, SA Daly, HS Gregg Rand Corporation, 2002 | 55 | 2002 |
Intelligence and security legislation for security sector reform G Hannah, KA O'Brien, R Andrew RAND, 2005 | 54 | 2005 |
The privatization of peacekeeping: prospects and realities D Lilly Disarmament Forum 3, 53-62, 2000 | 49 | 2000 |
Intelligence governance and democratisation: A comparative analysis of the limits of reform P Gill Routledge, 2016 | 46 | 2016 |