1
Published: 1999.
2
Published: c2006.
Superior document: Rand Corporation monograph series
3
Published: 2010.
Superior document: RAND Corporation monograph series
4
Published: c2006.
Superior document: Rand Corporation monograph series
Links: Get full text
5
Published: 2010.
Superior document: RAND Corporation monograph series
Links: Get full text
6
Published: 2004.
Links: Get full text
7
Published: c2000.
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8
Published: 2004.
9
Published: 2002.