61
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62
Published: 2014.
63
Published: 2008.
64
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65
Published: 2008.
Superior document: Rand Corporation monograph series
66
Published: c2002.
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67
Published: 2006.
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68
Published: 2010.
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69
Published: 2013.
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70
Published: 2005.
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71
Published: 2013
72
Published: 2015
73
Published: 2013
74
Published: 2016
75
Published: 2010.
76
Published: 2016.
77
Published: 2002.
78
Published: c2004.
79
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Superior document: Rand Corporation monograph series
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Published: c1999.