- Author: Rand Corporation, Concannon Thomas W., Friedman Esther M., Liu Jodi L., Shih Regina A
- Language: English
- Year: 2014
- Author: Bolling Eric
- Language: English
- Year: 2017
- Author: Ricoeur Paul
- Language: French
- Year: 2013
- Author: Ricoeur Paul
- Language: French
- Year: 2013
- Author: Johnston Tim R
- Language: English
- Year: 2016