1
2
Publicat: 2011.
3
Publicat: 2011.
4
5
6
Publicat: 2013
Free to read (incl. Open Access)
7
Publicat: 2008.
Superior document: Rand Corporation monograph series
8
Publicat: 2008.
Superior document: Rand Corporation monograph series
Links: Obtenir text complet
9
Publicat: 2010.
Superior document: Rand Corporation monograph series
10
Publicat: 2010.
Superior document: Rand Corporation monograph series
Links: Obtenir text complet