1
by Dixon, Lloyd S.
Published 2013
RAND

2
by Dixon, Lloyd S., McGovern, Geoffrey
Published 2015
Rand Corporation

4
by Dixon, Lloyd S.
Published 2012
RAND

5
by Dworsky, Michael, Dixon, Lloyd S.
Published 2014
Rand Corporation

6

7
by Dixon, Lloyd S.
Published 2007
RAND Center for Terrorism Risk Management Policy