1
Published: 1999.
2
Published: 1987
3
Published: 1989
4
Published: c2006.
Superior document: Rand Corporation monograph series
5
Published: 2010.
Superior document: RAND Corporation monograph series
6
Published: c2006.
Superior document: Rand Corporation monograph series
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7
Published: 2010.
Superior document: RAND Corporation monograph series
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8
Published: 2004.
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9
Published: c2000.
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10
Published: 2004.
11
Published: 2002.