- Author: Claudia Anamaria Iov
- Language: English
- Year: 2020
- Author: Alan Ashton-Smith
- Language: English
- Year: 2017
- Author: Aniko Szalai
- Language: English
- Year: 2015
- Author: Susan G. Drummond
- Language: English
- Year: 2005
- Author: Council of Europe, Council of Europe
- Language: English
- Year: 2011
- Author: David Malvinni
- Language: English
- Year: 2004
- Author: Dena Ringold, The World Bank
- Language: English
- Year: 2000
- Author: Anna G. Piotrowska, Guy R. Torr
- Language: English
- Year: 2013
- Author: Michael Hayes, Thomas Acton
- Language: English
- Year: 2007
- Author: Michael Hayes
- Language: English
- Year: 2007