1
by Gerwehr, Scott, Glenn, Russell W.
Published 2002
Rand

2
by Glenn, Russell W.
Published 2007
RAND Corp.

3
by Glenn, Russell W.
Published 2005
RAND

5
by Glenn, Russell W.
Published 2012
RAND

6
by Medby, Jamison Jo, Glenn, Russell W.
Published 2002
Rand