- Author: Gary D. Libecap, Marie Thursby, Sherry Hoskinson, Gary D. Libecap
- Language: English
- Year: 2010
- Author: Boris Ricken, George Malcotsis
- Language: English
- Year: 2011
- Author: Zoltan J. Acs, Bernard Yin Yeung
- Language: English
- Year: 1999
- Author: Graham Richards
- Language: English
- Year: 2012
- Author: Dominguez Noémie
- Language: English
- Year: 2018