- Author: Darius Ornston
- Language: English
- Year: 2018
- Author: Thomas Fazi
- Language: English
- Year: 2014
- Author: David J. Bailey, Jean-Michel de Waele, Fabien Escalona, Mathieu Vieira
- Language: English
- Year: 2014
- Author: Anthony De Jasay, Hartmut Kliemt
- Language: English
- Year: 2014
- Author: Council of Europe, Piotr A. Switalski
- Language: English
- Year: 2013
- Author: Orfeo Fioretos, Orfeo Fioretos
- Language: English
- Year: 2011
- Author: Sven R. Larson
- Language: English
- Year: 2014
- Author: Martina Topić, Srdjan Sremac, Martina Topic, Srdjan Sremac
- Language: English
- Year: 2014
- Author: Paul E. Peterson, Daniel Nadler
- Language: English
- Year: 2014
- Author: Tibor Scitovsky
- Language: English
- Year: 2003